Nucleotides & 2′-Deoxynucleotides

Nucleotides are the basic building blocks of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA), a nitrogen-containing nucleobase, and one or more phosphate groups. The nucleobases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T). In RNA, the nucleobase uracil (U) replaces thymine. DNA and RNA molecules are polymers made up of long chains of nucleotides. Nucleotides have diverse functions in cellular processes, well beyond their role as building blocks of nucleic acids. They play critical roles in biological energy storage and transmission, signaling, regulation of various aspects of metabolism, and even as important antioxidants and enzyme cofactors. Moreover, nucleotides and their derivatives have significant therapeutic applications. Many antiviral and anticancer drugs are nucleotide analogs (in vivo) that interfere with nucleic acid synthesis in pathogens or cancer cells. Nucleotide analogs can inhibit DNA or RNA replication, making them valuable in the treatment of viral infections and certain types of cancer. To learn more about nucleotide products and services, please contact the experts at CASSIA, LLC.

Canonical Ribonucleotides & Intermediates

Adenosine-5′-Triphosphate

Synonyms: rATP; ATP; pppA
CAS: 56-65-5 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₈N₉O₁₃P₃
Molecular Weight: 575.31
Exact Mass: 505.9885 [C₁₀H₁₆N₅O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Excellent Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rATP	(Natural Abundance)	In Stock	0.1 mmole	$450.00
DLM-8815-CA	(Adenine-2-D, 98%)	Low Stock	TBD	CIL
DLM-9268-CA	(Adenine-2,8-D₂, 98%)	Low Stock	TBD	CIL
DLM-7514-CA	(Adenine-2,8-D₂, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
DLM-11405-CA	(Ribose-4'-D, 98%)	Low Stock	TBD	CIL
DLM-11406-CA	(Ribose-5',5''-D₂, 98%)	Low Stock	TBD	CIL
DLM-8922-CA	(Ribose-3',4',5',5''-D₄, 98%)	Low Stock	TBD	CIL
DLM-9619-CA	(Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
CLM-8932-CA	(Adenine-2-¹³C, 98%)	Low Stock	TBD	CIL
CLM-8426-CA	(Adenine-2,4,5,6,8-¹³C₅, 99%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
CLM-11402-CA	(Ribose-4'-¹³C, 99%)	Low Stock	TBD	CIL
CLM-11403-CA	(Ribose-5'-¹³C, 99%)	Low Stock	TBD	CIL
CLM-11404-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
NLM-3987-CA	(Adenine-1,3,N6,7,9-¹⁵N₅, 98%)	Low Stock	TBD	CIL
CNLM-4265-CA	(Adenine-2,4,5,6,8-¹³C₅, 99%; Adenine-1,3,N6,7,9-¹⁵N₅, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
DNLM-11474-CA	(Adenine-1,3,N6,7,9-¹⁵N₅, 98%; Ribose-2',3',4',5',5''-D₅, 98%)	Low Stock	TBD	CIL
DNLM-10985-CA	(Adenine-1,3,N6,7,9-¹⁵N₅, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cytidine-5′-Triphosphate

Synonyms: rCTP; CTP; pppC
CAS: 65-47-4 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₈N₇O₁₄P₃
Molecular Weight: 551.28
Exact Mass: 481.9772 [C₉H₁₆N₃O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Excellent Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rCTP	(Natural Abundance)	In Stock	0.1 mmole	$450.00
DLM-9366-CA	(Cytosine-5-D, 98%)	Low Stock	TBD	CIL
DLM-8924-CA	(Cytosine-5-D, 98%; Ribose-3',4',5',5''-D₄, 98%)	Low Stock	TBD	CIL
DLM-11486-CA	(Cytosine-5-D, 98%; Ribose-2',3',4',5',5''-D₅, 98%)	Low Stock	TBD	CIL
DLM-8594-CA	(Cytosine-5-D, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
DLM-9267-CA	(Cytosine-5,6-D₂, 98%)	Low Stock	TBD	CIL
DLM-7515-CA	(Cytosine-5,6-D₂, 98%; Ribose-1',2'.3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
CLM-10987-CA	(Cytosine-2,4,5,6-¹³C₄, 99%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
NLM-4266-CA	(Cytosine-1,3,N4-¹⁵N₃, 98%)	Low Stock	TBD	CIL
CNLM-4267-CA	(Cytosine-2,4,5,6-¹³C₄, 99%; Cytosine-1,3,N4-¹⁵N₃, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Guanosine-5′-Triphosphate

Synonyms: rGTP; GTP; pppG
CAS: 86-01-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₈N₉O₁₄P₃
Molecular Weight: 591.30
Exact Mass: 521.9834 [C₁₀H₁₆N₅O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Excellent Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rGTP	(Natural Abundance)	In Stock	0.1 mmole	$450.00
DLM-7516-CA	(Guanine-8-D, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
DLM-11407-CA	(Ribose-3'-D, 98%)	Low Stock	TBD	CIL
DLM-8923-CA	(Ribose-3',4',5',5''-D₄, 98%)	Low Stock	TBD	CIL
CLM-10988-CA	(Guanine-2,4,5,6,8-¹³C₅, 99%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
NLM-4268-CA	(Guanine-1,N2,3,7,9-¹⁵N₅, 98%)	Low Stock	TBD	CIL
CNLM-4269-CA	(Guanine-2,4,5,6,8-¹³C₅, 99%; Guanine-1,N2,3,7,9-¹⁵N₅, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
DNLM-11475-CA	(Guainine-1,N2,3,7,9-¹⁵N₅, 98%; Ribose-2',3',4',5',5''-D₅, 98%)	Low Stock	TBD	CIL
DNLM-10913-CA	(Guanine-1,N2,3,7,9-¹⁵N₅, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Inosine-5′-Triphosphate

Synonyms: rITP; ITP; pppI
CAS: 132-06-9 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇N₈O₁₄P₃
Molecular Weight: 576.29
Exact Mass: 506.9725 [C₁₀H₁₅N₄O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Good Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rITP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Uridine-5′-Triphosphate

Synonyms: rUTP; UTP; pppU
CAS: 63-39-8 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₆O₁₅P₃
Molecular Weight: 552.26
Exact Mass: 482.9613 [C₉H₁₅N₂O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Excellent Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rUTP	(Natural Abundance)	In Stock	0.1 mmole	$450.00
DLM-9365-CA	(Uracil-5-D, 98%)	Low Stock	TBD	CIL
DLM-8925-CA	(Uracil-5-D, 98%; Ribose-3',4',5',5''-D₄, 98%)	Low Stock	TBD	CIL
DLM-11487-CA	(Uracil-5-D, 98%; Ribose-2',3',4',5',5''-D₅, 98%)	Low Stock	TBD	CIL
DLM-8637-CA	(Uracil-5-D, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
DLM-9100-CA	(Uracil-5,6-D₂, 98%)	Low Stock	TBD	CIL
DLM-7517-CA	(Uracil-5,6-D₂, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
CLM-10914-CA	(Uracil-2,4,5,6-¹³C₄, 99%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
NLM-4270-CA	(Uracil-1,3-¹⁵N₂, 98%)	Low Stock	TBD	CIL
CNLM-4271-CA	(Uracil-2,4,5,6-¹³C₄, 99%; Uracil-1,3-¹⁵N₂, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
DNLM-10986-CA	(Uracil-1,3-¹⁵N₂, 98%; Ribose-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Xanthosine-5′-Triphosphate

Synonyms: rXTP; XTP; pppX
CAS: 6253-56-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇N₈O₁₅P₃
Molecular Weight: 592.29
Exact Mass: 522.9674 [C₁₀H₁₅N₄O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rXTP	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Adenosine-5′-Diphosphate

Synonyms: rADP; ADP; ppA
CAS: 58-64-0 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₄N₈O₁₀P₂
Molecular Weight: 478.30
Exact Mass: 426.0221 [C₁₀H₁₅N₅O₁₀P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rADP	(Natural Abundance)	In Stock	0.1 mmole	$200.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cytidine-5′-Diphosphate

Synonyms: rCDP; CDP; ppC
CAS: 63-38-7 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₄N₆O₁₁P₂
Molecular Weight: 454.27
Exact Mass: 402.0109 [C₉H₁₅N₃O₁₁P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rCDP	(Natural Abundance)	In Stock	0.1 mmole	$200.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Guanosine-5′-Diphosphate

Synonyms: rGDP; GDP; ppG
CAS: 146-91-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₄N₈O₁₁P₂
Molecular Weight: 494.30
Exact Mass: 442.0171 [C₁₀H₁₅N₅O₁₁P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rGDP	(Natural Abundance)	In Stock	0.1 mmole	$200.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Inosine-5′-Diphosphate

Synonyms: rIDP; IDP; ppI
CAS: 86-04-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₃N₇O₁₁P₂
Molecular Weight: 479.28
Exact Mass: 427.0062 [C₁₀H₁₄N₄O₁₁P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rIDP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Uridine-5′-Diphosphate

Synonyms: rUDP; UDP; ppU
CAS: 58-98-0 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₃N₅O₁₂P₂
Molecular Weight: 455.25
Exact Mass: 402.9949 [C₉H₁₄N₂O₁₂P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rUDP	(Natural Abundance)	In Stock	0.1 mmole	$200.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Xanthosine-5′-Diphosphate

Synonyms: rXDP; XDP; ppX
CAS: 29042-61-3 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₃N₇O₁₂P₂
Molecular Weight: 495.28
Exact Mass: 443.0011 [C₁₀H₁₄N₄O₁₂P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rXDP	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Adenosine-5′-Monophosphate

Synonyms: Adenylic Acid; rAMP; AMP; pA
CAS: 61-19-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₇P
Molecular Weight: 381.29
Exact Mass: 346.0558 [C₁₀H₁₄N₅O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rAMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3792-CA	(Adenine-1,3,N6,7,9-¹⁵N₅, 98%)	Low Stock	TBD	CIL
CNLM-3802-CA	(Adenine-2,4,5,6,8-¹³C₅, 99%; Adenine-1,3,N6,7,9-¹⁵N₅, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Adenylosuccinate

Synonyms: Adenylosuccinic Acid; rAdS; AdS
CAS: 19048-78-7 (Natural Abundance; Free Acid)
Empirical Formula: C₁₄H₃₀N₉O₁₁P
Molecular Weight: 531.42
Exact Mass: 462.0668 [C₁₄H₁₇N₅O₁₁P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rAdS	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$525.00
CLM-11441-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cytidine-5′-Monophosphate

Synonyms: Cytidylic Acid; rCMP; CMP; pC
CAS: 63-37-6 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₀N₅O₈P
Molecular Weight: 357.26
Exact Mass: 322.0446 [C₉H₁₄N₃O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rCMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3793-CA	(Cytosine-1,3,N4-¹⁵N₃, 98%)	Low Stock	TBD	CIL
CNLM-3803-CA	(Cytosine-2,4,5,6-¹³C₄, 99%; Cytosine-1,3,N4-¹⁵N₃, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Guanosine-5′-Monophosphate

Synonyms: Guanylic Acid; rGMP; GMP; pG
CAS: 85-32-5 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₈P
Molecular Weight: 397.29
Exact Mass: 362.0507 [C₁₀H₁₄N₅O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rGMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3794-CA	(Guanine-1,N2,3,7,9-¹⁵N₅, 98%)	Low Stock	TBD	CIL
CNLM-3804-CA	(Guanine-2,4,5,6,8-¹³C₅, 99%; Guanine-1,N2,3,7,9-¹⁵N₅, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Inosine-5′-Monophosphate

Synonyms: Inosinic Acid; rIMP; IMP; pI
CAS: 131-99-7 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₈P
Molecular Weight: 382.27
Exact Mass: 347.0398 [C₁₀H₁₃N₄O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rIMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
NLM-8712-CA	(Hypoxanthine-1,3,7,9-¹⁵N₄, 98%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Orotidine-5′-Monophosphate

Synonyms: Orotidylic Acid; rOMP; OMP; pO
CAS: 2149-82-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₂N₅O₁₁P
Molecular Weight: 419.28
Exact Mass: 367.0184 [C₁₀H₁₃N₂O₁₁P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rOMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$525.00
CLM-11510-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

1-(5′-Phosphoribosyl)-4-Carbamoyl-5-Aminoimidazole

Synonyms: Acadesine-5′-Monophosphate; AICAR
CAS: 3031-94-5 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₁N₆O₈P
Molecular Weight: 372.28
Exact Mass: 337.0555 [C₉H₁₅N₄O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AICAR	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$525.00
CLM-9427-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

1-(5′-Phosphoribosyl)-4-(N-Succinocarboxamide)-5-Aminoimidazole

Synonyms: Succinylacadesine-5′-Monophosphate; SAICAR
CAS: 3031-95-6 (Natural Abundance; Free Acid)
Empirical Formula: C₁₃H₃₁N₈O₁₂P
Molecular Weight: 522.41
Exact Mass: 453.0664 [C₁₃H₁₉N₄O₁₂P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
SAICAR	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
CLM-11442-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Uridine-5′-Monophosphate

Synonyms: Uridylic Acid; rUMP; UMP; pU
CAS: 58-97-9 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₉P
Molecular Weight: 358.24
Exact Mass: 323.0286 [C₉H₁₃N₂O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rUMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3795-CA	(Uracil-1,3-¹⁵N₂, 98%)	Low Stock	TBD	CIL
CNLM-3805-CA	(Uracil-2,4,5,6-¹³C₄, 99%; Uracil-1,3-¹⁵N₂, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Xanthosine-5′-Monophosphate

Synonyms: Xanthylic Acid; rXMP; XMP; pX
CAS: 523-98-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₉P
Molecular Weight: 398.27
Exact Mass: 363.0347 [C₁₀H₁₃N₄O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
CLM-8700-CA	(Xanthine-2,4,5,6,8-¹³C₅, 99%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Non-Canonical Ribonucleotides

Nicotinamide D-Ribonucleotide

Synonyms: Nicotinamide Mononucleotide; NMN
CAS: 1094-61-7 (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₁₈N₃O₈P
Molecular Weight: 351.25
Exact Mass: 333.0493 [C₁₁H₁₅N₂O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
NMN	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Nicotinate D-Ribonucleotide

Synonyms: Nicotinic Acid Mononucleotide; NaMN
CAS: 321-02-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₂₀N₃O₉P
Molecular Weight: 369.27
Exact Mass: 334.0333 [C₁₁H₁₄NO₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
NaMN	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Modified Ribonucleotides

2-Aminoadenosine-5′-Triphosphate

Synonyms: 2,6-Diaminopurinosine-5′-Triphosphate; n2rATP
CAS: 18549-34-3 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₉N₁₀O₁₃P₃
Molecular Weight: 590.32
Exact Mass: 520.9994 [C₁₀H₁₇N₆O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Fair Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
n2rATP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
CLM-New-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Chloroadenosine-5′-Triphosphate

Synonyms: 2-Chloro-rATP; Cl2rATP; pppCl2A
CAS: 49564-60-5 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇ClN₉O₁₃P₃
Molecular Weight: 609.75
Exact Mass: 539.9495 [C₁₀H₁₅ClN₅O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Description: 2-Chloroadenosine (Cl2rA) is a metabolically stable natural product analog of adenosine found in Ophiocordyceps sinensis. 2-Chloroadenosine acts as an adenosine (A1) receptor agonist with potent effect on the peripheral and central nervous system. (Journal of Neurochemistry 2019, 151, 227-237.)

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
Cl2rATP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxycytidine-5′-Triphosphate

Synonyms: 5-Hydroxy-rCTP; ho5rCTP; pppho5C
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₈N₇O₁₅P₃
Molecular Weight: 567.28
Exact Mass: 497.9721 [C₉H₁₆N₃O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho5rCTP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxyuridine-5′-Triphosphate

Synonyms: 5-Hydroxy-rUTP; ho5rUTP; pppho5U
CAS: 27972-89-0 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₆O₁₆P₃
Molecular Weight: 568.26
Exact Mass: 498.9562 [C₉H₁₅N₂O₁₆P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho5rUTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Methyladenosine-5′-Triphosphate

Synonyms: 2-Methyl-rATP; m2rATP; pppm2A
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₃₀N₉O₁₃P₃
Molecular Weight: 589.33
Exact Mass: 520.0041 [C₁₁H₁₈N₅O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m2rATP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methylcytidine-5′-Triphosphate

Synonyms: 5-Methyl-rCTP; m5rCTP; pppm5C
CAS: 327174-86-7 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₃₀N₇O₁₄P₃
Molecular Weight: 565.31
Exact Mass: 495.9929 [C₁₀H₁₈N₃O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5rCTP	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methyluridine-5′-Triphosphate

Synonyms: rTTP; m5rUTP; pppm5U
CAS: 23198-01-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₉N₆O₁₅P₃
Molecular Weight: 566.29
Exact Mass: 496.9769 [C₁₀H₁₇N₂O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Good Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5rUTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
CLM-New-CA	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Nebularine-5′-Triphosphate

Synonyms: Purinosine-5′-Triphosphate; rPTP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇N₈O₁₃P₃
Molecular Weight: 560.29
Exact Mass: 490.9776 [C₁₀H₁₅N₄O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Description: Nebularine is metabolically stable natural product analog of adenosine, first isolated from Lepista nebularis and Streptomyces yokosukanensis. Nebularine is an inhibitor of Adenosine Kinase [EC 2.7.1.20] and Adenosine Deaminase [EC 3.5.4.4], with a diverse biological profile, including: anti-parasitic, anti-viral, and anti-bacterial, as well as, cytotoxicity, phytotoxicity, and anti-mitotic activities. (Biochemical Pharmacology 1987, 36, 3815-3821.; Biochemical Pharmacology 1995, 49, 1501-1512.)

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rPTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Pseudouridine-5′-Triphosphate

Synonyms: rΨTP; ΨTP; pppY
CAS: 1175-34-4 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₆O₁₅P₃
Molecular Weight: 552.26
Exact Mass: 482.9613 [C₉H₁₅N₂O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Good Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rΨTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
CNLM-New-CA	(Uracil-2,4,5,6-¹³C₄, 99%; Uracil-1,3-¹⁵N₂, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Carboxyuridine-5′-Monophosphate

Synonyms: Isoorotidylic Acid; c5rUMP; pc5U
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₃N₅O₁₁P
Molecular Weight: 420.29
Exact Mass: 367.0184 [C₁₀H₁₃N₂O₁₁P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
c5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Formyluridine-5′-Monophosphate

Synonyms: 5-Formyluridylic Acid; f5rUMP; pf5U
CAS: 60170-17-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₄O₁₀P
Molecular Weight: 386.25
Exact Mass: 351.0235 [C₁₀H₁₃N₂O₁₀P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
f5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxycytidine-5′-Monophosphate

Synonyms: 5-Hydroxycytidylic Acid, ho5rCMP; pho5C
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₀N₅O₉P
Molecular Weight: 373.26
Exact Mass: 338.0395 [C₉H₁₁₄₃N₃O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho5rCMP	(Natural Abundance)	120-Day Lead Time	0.1 mmole	$2,625.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxymethyluridine-5′-Monophosphate

Synonyms: 5-Hydroxymethyluridylic Acid; hm5rUMP; phm5U
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁N₄O₁₀P
Molecular Weight: 388.27
Exact Mass: 353.0392 [C₁₀H₁₅N₂O₁₀P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
hm5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxyuridine-5′-Monophosphate

Synonyms: Isobarbituridylic Acid; ho5rUMP; pho5U
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₁₀P
Molecular Weight: 374.24
Exact Mass: 339.0235 [C₉H₁₃N₂O₁₀P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methoxyuridine-5′-Monophosphate

Synonyms: 5-Methoxyribouridylic Acid; mo5rUMP; pmo5U
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁N₄O₁₀P
Molecular Weight: 388.27
Exact Mass: 353.0392 [C₁₀H₁₅N₂O₁₀P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
mo5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methylcytidine-5′-Monophosphate

Synonyms: 5-Methylcytidylic Acid; m5rCMP; pm5C
CAS: 3590-36-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₂N₅O₈P
Molecular Weight: 371.29
Exact Mass: 336.0602 [C₁₀H₁₆N₃O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5rCMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,625.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methyl-2-Thiouridine-5′-Monophosphate

Synonyms: 2-Thioribothymidylic Acid; m5s2rUMP; pm5s2U
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁N₄O₈PS
Molecular Weight: 388.33
Exact Mass: 353.2623 [C₁₀H₁₅N₂O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5s2rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methyluridine-5′-Monophosphate

Synonyms: Ribothymidylic Acid; rTMP; m5rUMP; pm5U
CAS: 3590-47-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁N₄O₉P
Molecular Weight: 372.27
Exact Mass: 337.0442 [C₁₀H₁₅N₂O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Nebularine-5′-Monophosphate

Synonyms: Purinosine-5′-Monophosphate; rPMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₇P
Molecular Weight: 366.27
Exact Mass: 331.0449 [C₁₀H₁₃N₄O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
rPMP	(Natural Abundance)	90-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Pseudouridine-5′-Monophosphate

Synonyms: Pseudouridylic Acid; rΨMP; ΨMP; pY
CAS: 1157-60-4 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₉P
Molecular Weight: 358.24
Exact Mass: 323.0286 [C₉H₁₃N₂O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11346-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
CNLM-11344-CA	(Uracil-2,4,5,6-¹³C₄, 99%; Uracil-1,3-¹⁵N₂, 98%; Ribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Thiouridine-5′-Monophosphate

Synonyms: 2-Thiouridylic Acid; s2rUMP; ps2U
CAS: 29123-25-9 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₈PS
Molecular Weight: 374.31
Exact Mass: 339.0057 [C₉H₁₃N₂O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s2rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

4-Thiouridine-5′-Monophosphate

Synonyms: 4-Thiouridylic Acid; s4rUMP; ps4U
CAS: 4145-46-4 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₈PS
Molecular Weight: 374.31
Exact Mass: 339.0057 [C₉H₁₃N₂O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s4rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Analog Ribonucleotides

8-Aza-adenosine-5′-Triphosphate

Synonyms: 8-Aza-rATP; AZ8rATP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₁₀O₁₃P₃
Molecular Weight: 576.29
Exact Mass: 506.9837 [C₉H₁₅N₆O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Fair Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ8rATP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Azaguanosine-5′-Triphosphate

Synonyms: 8-Aza-rGTP; AZ8rGTP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₁₀O₁₄P₃
Molecular Weight: 592.29
Exact Mass: 522.9786 [C₉H₁₅N₆O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Fair Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ8rGTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Fluoroadenosine-5′-Triphosphate

Synonyms: 2-Fluoro-rATP; F2rATP; F2ATP
CAS: 1492-62-2 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇FN₉O₁₃P₃
Molecular Weight: 593.30
Exact Mass: 523.9790 [C₁₀H₁₅FN₅O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Good Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-10698-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
CLM-11562-CA	(2-Fluoroadenine-2-¹³C, 95%)	Low Stock	0.1 mmole	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluorocytidine-5′-Triphosphate

Synonyms: 5-Fluoro-rCTP; F5rCTP; F5CTP
CAS: 31535-25-8 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇FN₇O₁₄P₃
Molecular Weight: 569.27
Exact Mass: 499.9678 [C₉H₁₅FN₃O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Good Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-10697-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluorouridine-5′-Triphosphate

Synonyms: 5-Fluoro-rUTP; F5rUTP; F5UTP
CAS: 3828-96-4 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₆FN₆O₁₅P₃
Molecular Weight: 570.25
Exact Mass: 500.9518 [C₉H₁₄FN₂O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Good Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-10696-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Methylnebularine-5′-Triphosphate

Synonyms: 6-Methylpurinosine-5′-Triphosphate; m6rPTP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₂₉N₈O₁₃P₃
Molecular Weight: 574.32
Exact Mass: 504.9932 [C₁₁H₁₇N₄O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m6rPTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Thioguanosine-5′-Triphosphate

Synonyms: 6-Thio-rGTP; s6rGTP
CAS: 17670-19-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₈N₉O₁₃P₃S
Molecular Weight: 576.29
Exact Mass: 506.9837 [C₉H₁₅N₆O₁₃P₃S – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6rGTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,250.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Aminonebularine-5′-Monophosphate

Synonyms: 2-Aminopurinosine-5′-Monophosphate; n2rPMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₇P
Molecular Weight: 381.29
Exact Mass: 346.0558 [C₁₀H₁₄N₅O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Description: The 2-Aminopurine base has been widely used as an effective fluorophore (excitation at 315 nm and emission maximum at 360 nm) to probe changes in base-stacking interactions in nucleic acid structure and dynamics.

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
n2rPMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Aminouridine-5′-Monophosphate

Synonyms: 5-Aminouridylic Acid; n5rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₀N₅O₉P
Molecular Weight: 373.26
Exact Mass: 338.0395 [C₉H₁₄N₃O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
n5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Aminouridine-5′-Monophosphate

Synonyms: 6-Aminouridylic Acid; n6rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₀N₅O₉P
Molecular Weight: 373.26
Exact Mass: 338.0395 [C₉H₁₄N₃O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
n6rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-adenosine-5′-Monophosphate

Synonyms: 8-Aza-adenylic Acid; AZ8rAMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₈O₇P
Molecular Weight: 382.27
Exact Mass: 347.0511 [C₉H₁₃N₆O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ8rAMP	(Natural Abundance)	90-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Azaguanosine-5′-Monophosphate

Synonyms: 8-Azaguanylic Acid; AZ8rGMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₈O₈P
Molecular Weight: 398.27
Exact Mass: 363.0460 [C₉H₁₃N₆O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ8rGMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

4-Azanicotinate Ribonucleotide

Synonyms: 4-Azanicotinate Mononucleotide; AZ4rNaMN
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₄N₅O₉P
Molecular Weight: 389.30
Exact Mass: 337.0442 [C₁₀H₁₅N₂O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ4rNaMN	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Azaorotidine-5′-Monophosphate

Synonyms: Oxonic Acid Ribonucleotide; AZ5rOMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₁N₆O₁₁P
Molecular Weight: 420.27
Exact Mass: 368.0137 [C₉H₁₂N₃O₁₁P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ5rOMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Azauridine-5′-Monophosphate

Synonyms: 6-Azauridylic Acid, AZ6rUMP
CAS: 2018-19-1 (Natural Abundance; Free Acid)
Empirical Formula: C₈H₁₈N₅O₉P
Molecular Weight: 359.23
Exact Mass: 324.0238 [C₈H₁₂N₃O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ6rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deaza-adenosine-5′-Monophosphate

Synonyms: Alloadenine-1-Ribotide; alloAMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₇P
Molecular Weight: 381.29
Exact Mass: 346.0558 [C₁₀H₁₄N₅O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
alloAMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deazaguanosine-5′-Monophosphate

Synonym: Alloguanine-1-Ribotide; alloGMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₈P
Molecular Weight: 397.29
Exact Mass: 362.0507 [C₁₀H₁₄N₅O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
alloGMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deazainosine-5′-Monophosphate

Synonym: Allopurinol-1-Ribotide; alloIMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₈P
Molecular Weight: 382.27
Exact Mass: 347.0398 [C₁₀H₁₂N₄O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
alloIMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deazaxanthosine-5′-Monophosphate

Synonyms: Alloxanthine-1-Ribotide; alloXMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₉P
Molecular Weight: 398.27
Exact Mass: 363.0347 [C₁₀H₁₃N₄O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
alloXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Aza-6-Hydroxyuridine-5′-Monophosphate

Synonyms: Cyanuric Acid Ribonucleotide; AZ5ho6rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₈H₁₈N₅O₁₀P
Molecular Weight: 375.23
Exact Mass: 340.0188 [C₈H₁₂N₃O₁₀P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC, Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ5ho6rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Aza-5-Methyluridine-5′-Monophosphate

Synonyms: 6-Azaribothymidylic Acid; AZ6rTMP; AZ6m5rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₀N₅O₉P
Molecular Weight: 373.26
Exact Mass: 338.0395 [C₉H₁₄N₃O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
AZ6m5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deaza-2,6-Dithioxanthosine-5′-Monophosphate

Synonym: 2,6-Dithio-Alloxanthine-1-Ribotide; s2s6alloXMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₇PS₂
Molecular Weight: 430.39
Exact Mass: 394.9891 [C₁₀H₁₃N₄O₇PS₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s2s6alloXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deaza-6-Thioguanosine-5′-Monophosphate

Synonyms: 6-Thio-Alloguanine-1-Ribotide; s6alloGMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₇PS
Molecular Weight: 413.35
Exact Mass: 378.0279 [C₁₀H₁₄N₅O₇PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6alloGMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deaza-6-Thioinosine-5′-Monophosphate

Synonym: 6-Thio-Allopurinol-1-Ribotide; s6alloIMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₇PS
Molecular Weight: 398.33
Exact Mass: 363.0170 [C₁₀H₁₃N₄O₇PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6alloIMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deaza-2-Thioxanthosine-5′-Monophosphate

Synonyms: 2-Thio-Alloxanthine-1-Ribotide; s2alloXMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₈PS
Molecular Weight: 414.33
Exact Mass: 379.0119 [C₁₀H₁₃N₄O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s2alloXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

8-Aza-7-Deaza-6-Thioxanthosine-5′-Monophosphate

Synonyms: 6-Thio-Alloxanthine-1-Ribotide; s6alloXMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₈PS
Molecular Weight: 414.33
Exact Mass: 379.0119 [C₁₀H₁₃N₄O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6alloXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Deoxyuridine-5′-Monophosphate

Synonyms: 2-Deoxyuridylic Acid; d2rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₈P
Molecular Weight: 342.25
Exact Mass: 307.0337 [C₉H₁₃N₂O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
d2rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

4-Deoxyuridine-5′-Monophosphate

Synonyms: Zebularine-5′-Monophosphate; d4rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₈P
Molecular Weight: 342.25
Exact Mass: 307.0337 [C₉H₁₃N₂O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
d4rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2,4-Dithiouridine-5′-Monophosphate

Synonyms: 2,4-Dithiouridylic Acid; s2s4rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₇PS₂
Molecular Weight: 390.37
Exact Mass: 354.9829 [C₉H₁₃N₂O₇PS₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s2s4rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2,6-Dithioxanthosine-5′-Monophosphate

Synonyms: 2,6-Dithioxanthylic Acid; s2s6rXMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₇PS₂
Molecular Weight: 430.39
Exact Mass: 394.9891 [C₁₀H₁₃N₄O₇PS₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s2s6rXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluorocytidine-5′-Monophosphate

Synonyms: 5-Fluorocytidylic Acid; F5rCMP
CAS: 31535-27-0 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉FN₅O₈P
Molecular Weight: 375.25
Exact Mass: 340.0352 [C₉H₁₃FN₃O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
F5rCMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$2,625.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluoronicotinate Ribonucleotide

Synonyms: 5-Fluoronicotinate Mononucleotide; F5rNaMN
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₁₉FN₃O₉P
Molecular Weight: 387.26
Exact Mass: 352.0239 [C₁₁H₁₃FNO₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
F5rNaMN	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluoro-orotidine-5'-Monophosphate

Synonyms: 5-Fluoro-orotidylic Acid; F5rOMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁FN₅O₁₁P
Molecular Weight: 437.27
Exact Mass: 385.0090 [C₁₀H₁₂FN₂O₁₁P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
F5rOMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluorouridine-5′-Monophosphate

Synonyms: 5-Fluorouridylic Acid; F5rUMP
CAS: 796-66-7 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₈FN₄O₉P
Molecular Weight: 376.23
Exact Mass: 341.0192 [C₉H₁₂FN₂O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
F5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Hydroxypseudouridine-5′-Monophosphate

Synonyms: 6-Hydroxypseudouridylic Acid; ho6rΨMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₁₀P
Molecular Weight: 374.24
Exact Mass: 339.0235 [C₉H₁₃N₂O₁₀P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho6rΨMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Methylnebularine-5′-Monophosphate

Synonyms: 6-Methylpurinosine-5′-Monophosphate; m6rPMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₂₁N₆O₇P
Molecular Weight: 380.30
Exact Mass: 345.0606 [C₁₁H₁₅N₄O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m6rPMP	(Natural Abundance)	90-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Methyluridine-5′-Monophosphate

Synonyms: 6-Methyluridylic Acid; m6rUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁N₄O₉P
Molecular Weight: 372.27
Exact Mass: 337.0442 [C₁₀H₁₅N₂O₉P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m6rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Nitrouridine-5′-Monophosphate

Synonyms: 5-Nitrouridylic Acid; 5-Nitro-rUMP; N5rUMP
CAS: 23568-00-5 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₈N₅O₁₁P
Molecular Weight: 403.24
Exact Mass: 368.0137 [C₉H₁₂N₃O₁₁P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
N5rUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Ribavirin-5′-Monophosphate

Synonyms: Virazole-5′-Monophosphate; RbvMP
CAS: 40925-28-8 (Natural Abundance; Free Acid)
Empirical Formula: C₈H₁₉N₆O₈P
Molecular Weight: 358.25
Exact Mass: 323.0398 [C₈H₁₃N₄O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
RbvMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Thioguanosine-5′-Monophosphate

Synonyms: 6-Thioguanylic Acid; s6rGMP
CAS: 15867-02-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₇PS
Molecular Weight: 413.35
Exact Mass: 378.0279 [C₁₀H₁₄N₅O₇PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6rGMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Thioinosine-5′-Monophosphate

Synonyms: 6-Thioinosinic Acid; s6rIMP
CAS: 53-83-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₇PS
Molecular Weight: 398.33
Exact Mass: 363.0170 [C₁₀H₁₃N₄O₇PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6rIMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Thioxanthosine-5′-Monophosphate

Synonyms: 2-Thioxanthylic Acid; s2rXMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₈PS
Molecular Weight: 414.33
Exact Mass: 379.0119 [C₁₀H₁₃N₄O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s2rXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Thioxanthosine-5′-Monophosphate

Synonyms: 6-Thioxanthylic Acid; s6rXMP
CAS: 3237-49-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₈PS
Molecular Weight: 414.33
Exact Mass: 379.0119 [C₁₀H₁₃N₄O₈PS – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
s6rXMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$1,750.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Canonical 2′-Deoxyribonucleotides & Intermediates

2′-Deoxyadenosine-5′-Triphosphate

Synonyms: 2′-Deoxy-ATP; dATP
CAS: 1927-31-7 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₈N₉O₁₂P₃
Molecular Weight: 559.31
Exact Mass: 489.9936 [C₁₀H₁₆N₅O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dATP	(Natural Abundance)	In Stock	0.1 mmole	$650.00
DLM-7507-CA	(Adenine-2,8-D₂, 98%; Ribose-1',2',2'',3',4',5',5''-D₇, 98%)	Low Stock	TBD	CIL
NLM-6215-CA	(Adenine-1,3,N6,7,9-¹⁵N₅, 98%)	Low Stock	TBD	CIL
CNLM-6219-CA	(Adenine-2,4,5,6,8-¹³C₅, 99%; Adenine-1,3,N6,7,9-¹⁵N₅, 98%; 2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxycytidine-5′-Triphosphate

Synonyms: 2′-Deoxy-CTP; dCTP
CAS: 2056-98-6 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₈N₇O₁₃P₃
Molecular Weight: 535.28
Exact Mass: 465.9823 [C₉H₁₆N₃O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dCTP	(Natural Abundance)	In Stock	0.1 mmole	$650.00
DLM-7508-CA	(Cytosine-5,6-D₂, 98%; 2'-Deoxyribose-1',2',2'',3',4',5',5''-D₇, 98%)	Low Stock	TBD	CIL
NLM-6216-CA	(Cytosine-1,3,N4-¹⁵N₃, 98%)	Low Stock	TBD	CIL
CNLM-6220-CA	(Cytosine-2,4,5,6-¹³C₄, 99%; Cytosine-1,3,N4-¹⁵N₃, 98%; 2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyguanosine-5′-Triphosphate

Synonyms: 2′-Deoxy-GTP; dGTP
CAS: 2564-35-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₈N₉O₁₃P₃
Molecular Weight: 575.31
Exact Mass: 505.9885 [C₁₀H₁₆N₅O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dGTP	(Natural Abundance)	In Stock	0.1 mmole	$650.00
DLM-7509-CA	(Guanine-8-D, 98%; 2'-Deoxyibose-1',2',2'',3',4',5',5''-D₇, 98%)	Low Stock	TBD	CIL
CLM-8041-CA	(Guanine-2,4,5,6,8-¹³C₅, 99%; 2'-Deoxyibose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
NLM-6217-CA	(Guanine-1,N2,3,7,9-¹⁵N₅, 98%)	Low Stock	TBD	CIL
CNLM-6221-CA	(Guanine-2,4,5,6,8-¹³C₅, 99%; Guanine-1,N2,3,7,9-¹⁵N₅, 98%; 2'-Deoxyibose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyinosine-5′-Triphosphate

Synonyms: 2′-Deoxy-ITP; dITP
CAS: 16595-02-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇N₈O₁₃P₃
Molecular Weight: 560.29
Exact Mass: 490.9776 [C₁₀H₁₅N₄O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dITP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxythymidine-5′-Triphosphate

Synonyms: dTTP; TTP; m5dUTP
CAS: 27821-54-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₉N₆O₁₄P₃
Molecular Weight: 550.29
Exact Mass: 480.9820 [C₁₀H₁₇N₂O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dTTP	(Natural Abundance)	In Stock	0.1 mmole	$650.00
NLM-6218-CA	(Thymine-1,3-¹⁵N₂, 98%)	Low Stock	TBD	CIL
CNLM-6222-CA	(Thymine-2,4,5,6,Methyl-¹³C₅, 99%; 1,3-¹⁵N₂, 98%; 2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyuridine-5′-Triphosphate

Synonyms: 2′-Deoxy-UTP; dUTP
CAS: 1173-82-6 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₆O₁₄P₃
Molecular Weight: 536.26
Exact Mass: 466.9663 [C₉H₁₅N₂O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dUTP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyadenosine-5′-Monophosphate

Synonyms: 2′-Deoxyadenylic Acid; dAMP
CAS: 653-63-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₆P
Molecular Weight: 365.29
Exact Mass: 330.0609 [C₁₀H₁₄N₅O₆P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dAMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3919-CA	(Adenine-1,3,N6,7,9-¹⁵N₅, 98%)	Low Stock	0.1 mmole	CIL
CNLM-3918-CA	(Adenine-2,4,5,6,8-¹³C₅, 99%; Adenine-1,3,N6,7,9-¹⁵N₅, 98%; 2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	0.1 mmole	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxycytidine-5′-Monophosphate

Synonyms: 2′-Deoxycytidylic Acid; dCMP
CAS: 1032-65-1 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₀N₅O₇P
Molecular Weight: 341.26
Exact Mass: 306.0497 [C₉H₁₄N₃O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dCMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3921-CA	(Cytosine-1,3,N4-¹⁵N₃, 98%)	Low Stock	0.1 mmole	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyguanosine-5′-Monophosphate

Synonyms: 2′-Deoxyguanylic Acid; dGMP
CAS: 902-04-5 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₀N₇O₇P
Molecular Weight: 381.29
Exact Mass: 346.0558 [C₁₀H₁₄N₅O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dGMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-6835-CA	(Guanine-1,N2,3,7,9-¹⁵N₅, 98%)	Low Stock	0.1 mmole	CIL
CNLM-6836-CA	(Guanine-2,4,5,6,8-¹³C₅, 99%; Guanine-1,N2,3,7,9-¹⁵N₅, 98%; 2'-Deoxyibose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	0.1 mmole	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyinosine-5′-Monophosphate

Synonyms: 2′-Deoxyinosinic Acid; dIMP
CAS: 3393-18-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₉N₆O₇P
Molecular Weight: 366.27
Exact Mass: 331.0449 [C₁₀H₁₃N₄O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dIMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxythymidine-5′-Monophosphate

Synonyms: 2′-Deoxythymidylic Acid; dTMP
CAS: 365-07-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₁N₄O₈P
Molecular Weight: 356.27
Exact Mass: 321.0493 [C₁₀H₁₅N₂O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dTMP	(Natural Abundance)	In Stock	0.1 mmole	$25.00
NLM-3925-CA	(Thymine-1,3-¹⁵N₂, 98%)	Low Stock	0.1 mmole	CIL
CNLM-3924-CA	(Thymine-2,4,5,6,Methyl-¹³C₅, 99%; Thymine-1,3-¹⁵N₂, 98%; 2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	0.1 mmole	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-Deoxyuridine-5′-Monophosphate

Synonyms: 2′-Deoxyuridylic Acid; dUMP
CAS: 964-26-1 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₁₉N₄O₈P
Molecular Weight: 342.25
Exact Mass: 307.0337 [C₉H₁₃N₂O₈P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
dUMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	Quote
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Modified 2′-Deoxyribonucleotides

2-Amino-2′-Deoxyadenosine-5′-Triphosphate

Synonyms: 2-Amino-dATP; DAPTP; n2dATP
CAS: 81503-63-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₉N₁₀O₁₂P₃
Molecular Weight: 574.32
Exact Mass: 505.0045 [C₁₀H₁₇N₆O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Description: 2-Amino-2′-deoxyadenosine (n2dA) has been identified in the genomes of globally widespread bacterial viruses, such as Acinetobacter phage SH-Ab 15497, Cyanophage S-2L, and Vibrio phage PhiVC8. In bacteriophages, 2′-deoxyadenosine (dA) is completely replaced by n2dA, thus forming three hydrogen bonds with thymidine (dT). These non–Watson-Crick base pairs in the DNA are believed to help bacteriophages escape DNA degradation by bacterial restriction enzymes. (Science 2021, 372, 512-516.)

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
n2dATP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
CLM-New-CA	(2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxy-2′-Deoxycytidine-5′-Triphosphate

Synonyms: 5-Hydroxy-dCTP; ho5dCTP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₈N₇O₁₄P₃
Molecular Weight: 551.28
Exact Mass: 481.9772 [C₉H₁₆N₃O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Description: 5-Hydroxy-2′-deoxycytidine (ho5dC) is a major product of oxidative DNA damage with mutagenic potential. This nucleotide has been shown to be a substrate for endonuclease III [EC 4.2.99.8], and formamidopyrimidine DNA N-glycosylase [EC 3.2.2.23], thus removing lesions and facilitating DNA repair. (Journal of Biological Chemistry 1994, 269, 18814-18820.)

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho5dCTP	(Natural Abundance)	90-Day Lead Time	0.1 mmole	$5,062.50
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Hydroxy-2′-Deoxyuridine-5′-Triphosphate

Synonyms: 5-Hydroxy-dUTP; ho5dUTP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇N₆O₁₅P₃
Molecular Weight: 552.26
Exact Mass: 482.9613 [C₉H₁₅N₂O₁₅P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Description: 5-Hydroxy-2′-deoxyuridine (ho5dU) is a major product of oxidative DNA damage with mutagenic potential. This nucleotide have been shown to be a substrate for endonuclease III [EC 4.2.99.8], formamidopyrimidine DNA N-glycosylase [EC 3.2.2.23], and uracil DNA N-glycosylase [EC 3.2.2.27 and EC 3.2.2.28], thus removing lesions and facilitating DNA repair. (Journal of Biological Chemistry 1994, 269, 18814-18820.)

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ho5dUTP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methyl-2′-Deoxycytidine-5′-Triphosphate

Synonyms: 5-Methyl-dCTP; m5dCTP
CAS: 22003-12-9 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₃₀N₇O₁₃P₃
Molecular Weight: 549.31
Exact Mass: 479.9980 [C₁₀H₁₈N₃O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5dCTP	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Methyl-2′-Deoxycytidine-5′-Monophosphate

Synonyms: 5-Methyl-2′-deoxycytidylic Acid; m5dCMP
CAS: 2498-41-1 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₂N₅O₇P
Molecular Weight: 355.29
Exact Mass: 320.0653 [C₁₀H₁₆N₃O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m5dCMP	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,937.50
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Analog 2′-Deoxyribonucleotides

2-Chloro-2′-Deoxyadenosine-5′-Triphosphate

Synonyms: Cladribine-5′-Triphosphate; Cl2dATP; CdTP
CAS: 106867-30-5 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇ClN₉O₁₂P₃
Molecular Weight: 593.75
Exact Mass: 523.9546 [C₁₀H₁₅ClN₅O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
Cl2dATP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Fluoro-2′-Deoxyadenosine-5′-Triphosphate

Synonyms: 2-Fluoro-dATP; F2dATP
CAS: 118405-60-0 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇FN₉O₁₂P₃
Molecular Weight: 577.30
Exact Mass: 507.9841 [C₁₀H₁₅FN₅O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11411-CA	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluoro-2′-Deoxycytidine-5′-Triphosphate

Synonyms: 5-Fluoro-dCTP; F5dCTP
CAS: 79671-09-3 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇FN₇O₁₃P₃
Molecular Weight: 553.27
Exact Mass: 483.9729 [C₉H₁₅FN₃O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11412-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$5,062.50
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

5-Fluoro-2′-Deoxyuridine-5′-Triphosphate

Synonyms: 5-Fluoro-dUTP; F5dUTP
CAS: 2710-64-7 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₆FN₆O₁₄P₃
Molecular Weight: 554.26
Exact Mass: 484.9569 [C₉H₁₄FN₂O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11413-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2-Methyl-2′-Deoxyadenosine-5′-Triphosphate

Synonyms: 2-Methyl-dATP; m2dATP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₃₀N₉O₁₂P₃
Molecular Weight: 573.33
Exact Mass: 504.0092 [C₁₁H₁₈N₅O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m2dATP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

6-Methyl-2′-Deoxynebularine-5′-Triphosphate

Synonyms: 6-Methyl-dPTP; m6dPTP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₁H₂₉N₈O₁₂P₃
Molecular Weight: 558.32
Exact Mass: 488.9983 [C₁₁H₁₇N₄O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC, Avoid Freeze-Thaw Cycles
Note: Untested in PCR or Transcription

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
m6dPTP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-(R)-Fluoro-2′-Deoxyadenosine-5′-Triphosphate

Synonyms: 2′-Fluoro-dATP; F2’dATP
CAS: 73449-07-7 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇FN₉O₁₂P₃
Molecular Weight: 577.30
Exact Mass: 507.9841 [C₁₀H₁₅FN₅O₁₂P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Poor Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11243-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-(R)-Fluoro-2′-Deoxycytidine-5′-Triphosphate

Synonyms: 2′-Fluoro-dCTP; F2’dCTP
CAS: 66840-03-7 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₇FN₇O₁₃P₃
Molecular Weight: 553.27
Exact Mass: 483.9729 [C₉H₁₅FN₃O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Poor Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11244-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$5,062.50
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-(R)-Fluoro-2′-Deoxyguanosine-5′-Triphosphate

Synonyms: 2′-Fluoro-dGTP; F2’dGTP
CAS: 202186-97-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₇FN₉O₁₃P₃
Molecular Weight: 593.30
Exact Mass: 523.9790 [C₁₀H₁₅FN₅O₁₃P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Poor Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11245-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-(R)-Fluoro-2′-Deoxythymidine-5′-Triphosphate

Synonyms: 2′-Fluoro-dTTP; F2’dTTP; F2’m5dUTP
CAS: 138949-77-6 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₂₈FN₆O₁₄P₃
Molecular Weight: 568.18
Exact Mass: 498.9726 [C₁₀H₁₆FN₂O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Poor Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11246-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

2′-(R)-Fluoro-2′-Deoxyuridine-5′-Triphosphate

Synonyms: 2′-Fluoro-dUTP; F2’dUTP
CAS: 66840-02-6 (Natural Abundance; Free Acid)
Empirical Formula: C₉H₂₆FN₆O₁₄P₃
Molecular Weight: 554.26
Exact Mass: 484.9569 [C₉H₁₄FN₂O₁₄P₃ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: Poor Transcription Fidelity

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11247-CA	(Natural Abundance)	30-Day Lead Time	0.1 mmole	$3,375.00
Custom Synthesis	(Currently No Stable Isotope Forms Available)	In Pipeline	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Canonical Seconday Messenger Ribonucleotides

Adenosine 3′,5′-Cyclic Monophosphate

Synonyms: Cyclic 3′,5′-Adenylic Acid; cAMP
CAS: 60-92-4 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₅N₆O₆P
Molecular Weight: 346.24
Exact Mass: 326.0452 [C₁₀H₁₂N₅O₆P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
cAMP	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Guanosine 3′,5′-Cyclic Monophosphate

Synonyms: Cyclic 3′,5′-Guanylic Acid; cGMP
CAS: 7665-99-8 (Natural Abundance; Free Acid)
Empirical Formula: C₁₀H₁₅N₆O₇P
Molecular Weight: 362.24
Exact Mass: 344.0402 [C₁₀H₁₂N₅O₇P – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
cGMP	(Natural Abundance)	In Pipeline	-	-
Custom Synthesis	(Currently No Stable Isotope Forms Available)	-	-	-

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rA(2′,5′)p-rA(3′,5′)p]

Synonyms: 2′,3′-Cyclic-di-AMP; 2′,3′-cAAMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₀N₁₂O₁₂P₂
Molecular Weight: 692.48
Exact Mass: 657.0978 [C₂₀H₂₄N₁₀O₁₂P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
23-cAAMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rG(2′,5′)p-rA(3′,5′)p]

Synonyms: 2′,3′-Cyclic-GMP-AMP; 2′,3′-cGAMP; cGAS
CAS: 1441190-66-4 (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₀N₁₂O₁₃P₂
Molecular Weight: 708.48
Exact Mass: 673.0927 [C₂₀H₂₄N₁₀O₁₃P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
ULM-11276-CA	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
DLM-11273-CA	(Adenosine-1',2',3',4',5',5''-D₆, 98%)	Low Stock	TBD	CIL
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rG(2′,5′)p-rG(3′,5′)p]

Synonyms: 2′,3′-Cyclic-di-GMP; 2′,3′-cGGMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₀N₁₂O₁₄P₂
Molecular Weight: 724.48
Exact Mass: 689.0876 [C₂₀H₂₄N₁₀O₁₄P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
23-cGGMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rA(3′,5′)p-rA(3′,5′)p]

Synonyms: 3′,3′-Cyclic-di-AMP; 3′,3′-cAAMP
CAS: 54447-84-6 (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₀N₁₂O₁₂P₂
Molecular Weight: 692.48
Exact Mass: 657.0978 [C₂₀H₂₄N₁₀O₁₂P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
33-cAAMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rC(3′,5′)p-rC(3′,5′)p]

Synonyms: 3′,3′-Cyclic-di-CMP; 3′,3′-cCCMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₈H₃₀N₈O₁₄P₂
Molecular Weight: 644.43
Exact Mass: 609.0753 [C₁₈H₂₄N₆O₁₄P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
33-cCCMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rG(3′,5′)p-rA(3′,5′)p]

Synonyms: 3′,3′-Cyclic-GMP-AMP; 3′,3′-cGAMP
CAS: 849214-04-6 (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₀N₁₂O₁₃P₂
Molecular Weight: 708.48
Exact Mass: 673.0927 [C₂₀H₂₄N₁₀O₁₃P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
33-cGAMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rG(3′,5′)p-rG(3′,5′)p]

Synonyms: 3′,3′-Cyclic-di-GMP; 3′,3′-cGGMP
CAS: 61093-23-0 (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₀N₁₂O₁₄P₂
Molecular Weight: 724.48
Exact Mass: 689.0876 [C₂₀H₂₄N₁₀O₁₄P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
33-cGGMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Cyclic [rU(3′,5′)p-rU(3′,5′)p]

Synonyms: 3′,3′-Cyclic-di-UMP; 3′,3′-cUUMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₁₈H₂₈N₆O₁₆P₂
Molecular Weight: 646.40
Exact Mass: 611.0433 [C₁₈H₂₂N₄O₁₆P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
33-cUUMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Analog Seconday Messenger Ribonucleotides

Cyclic [rT(3′,5′)p-rT(3′,5′)p]

Synonyms: 3′,3′-Cyclic-di-rTMP; 3′,3′-rTTMP
CAS: – – – (Natural Abundance; Free Acid)
Empirical Formula: C₂₀H₃₂N₆O₁₆P₂
Molecular Weight: 674.45
Exact Mass: 639.0746 [C₂₀H₂₆N₄O₁₆P₂ – H]^–

Salt Form: Ammonium
Chemical Purity: ≥ 95% (HPLC)
Unit Size: 0.1 mmole (100 mM) in H₂O, pH 7.5
Storage: ≤ -20 ^oC; Avoid Freeze-Thaw Cycles
Note: N/A

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
33-cTTMP	(Natural Abundance)	60-Day Lead Time	0.1 mmole	$4,500.00
Custom Synthesis	(Please Explore our Custom Synthesis Options for Insperation)	Variable Lead Times	1.0+ mmole	Quote

* Stable isotope labeled nucleotides are exclusively marketed & sold through Cambridge Isotope Laboratories (CIL).

Custom Synthesis Options

CASSIA, LLC has many years of experience in nucleotide production. We offer high efficiency enzymatic synthesis production of nucleotides as our primary method, affording milder reaction conditions, simple operation, high reaction specificity, few side reactions, and simple isolation and purification of reaction products. In the process of nucleotide production, we continually optimize our protocols to provide customers with the best production service. We have successfully developed a range of synthetic routes for the production of nucleotide analogs, enabling rapid and efficient synthesis of modified nucleotide analogs and their derivatives. CASSIA, LLC has built a well-equipped lab and employs skilled researchers and partners that ensure we have the ability to provide high-quality results at an affordable price.

Applications:

Nucleotides can be used as feedstock for the production of DNA and RNA, as well as, antiviral and anticancer agents.
Custom isotope labeled nucleotides can support analytical efforts and data analysis in genomics.
Synthetic nucleotides drive mRNA-based vaccine innovation, improving immunization strategies.
Enzymatic synthesis of nucleotides is less toxic which might help in drug discovery and development.

CASSIA, LLC aims to offer excellent custom nucleotide synthesis proposals for our clients. Our professional R&D team generates custom synthesis proposals for our clients according to their requirements, and we aim to meet our client’s needs beyond what they expected. Please explore some examples of available custom isotopomers CASSIA, LLC can prepare. If you are interested in our services, please feel free to contact us.

Available Nucleobase Stable Isotopomers

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
Custom Synthesis	Adenine (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (2-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (2,8-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (2,4,5,6,8-¹³C₅, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (N6-¹⁵N, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (1,3,7,9-¹⁵N₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (1,3,N6,7,9-¹⁵N₅, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Adenine (2,4,5,6,8-¹³C₅, 99%; 1,3,N6,7,9-¹⁵N₅, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (5-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (5,6-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (2-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (4,5-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (2,4,5,6-¹³C₄, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (N4-¹⁵N, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (1,3,N4-¹⁵N₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Cytosine (2,4,5,6-¹³C₄, 99%; 1,3,N4-¹⁵N₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	5-Fluorouracil (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	5-Fluorouracil (1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	5-Fluorouracil (2,4,5,6-¹³C₄, 99%; 1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (8-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (2,4,5,6,8-¹³C₅, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (N2-¹⁵N, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (1,3,7,9-¹⁵N₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (1,N2,3,7,9-¹⁵N₅, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Guanine (2,4,5,6,8-¹³C₅, 99%; 1,N2,3,7,9-¹⁵N₅, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Hypoxanthine (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Hypoxanthine (2,8-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Hypoxanthine (2,4,5,6,8-¹³C₅, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Hypoxanthine (1,3,7,9-¹⁵N₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Hypoxanthine (2,4,5,6,8-¹³C₅, 99%; 1,3,7,9-¹⁵N₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Orotate (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Orotate (1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Orotate (2-¹³C, 99%; 1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Thymine (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Thymine (α,α,α,6-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Thymine (6-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Thymine (1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Thymine (2,4,5,Methyl,6-¹³C₅, 99%; 1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (5-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (5,6-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (2-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (4,5-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (2,4,5,6-¹³C₄, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Uracil (2,4,5,6-¹³C₄, 99%; 1,3-¹⁵N₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Xanthine (Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Xanthine (8-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Xanthine (2,4,5,6,8-¹³C₅, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Xanthine (1,3,7,9-¹⁵N₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	Xanthine (2,4,5,6,8-¹³C₅, 99%; 1,3,7,9-¹⁵N₄, 98%)	Variable Lead Times	1.0+ mmole	Quote

Available Stable Isotopomers of Ribose

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
Custom Synthesis	(Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2',3',4',5'-¹²C₅, 99.9%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-3'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-4'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-5',5''-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2'-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2',3'-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2',4'-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-3',4'-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2',5',5''-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-4',5',5''-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2',3'-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2',4'-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2',5',5''-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-3',4',5',5''-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2',3',4',5',5''-D₅, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2',3',4',5',5''-D₆, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthsis	(Ribose-2'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-3'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-4'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-5'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2'-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2',3'-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-3',4'-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-3',4',5'-¹³C₃, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-2',3',4',5'-¹³C₄, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(Ribose-1',2',3',4',5'-¹³C₅, 99%)	Variable Lead Times	1.0+ mmole	Quote

Available Stable Isotopomers of 2'-Deoxyribose

Product Number	Description - Stable Isotope Position	Availability	Unit Size	Price
Custom Synthesis	(Natural Abundance)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',3',4',5'-¹²C₅, 99.9%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',2''-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-3'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-4'-D, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-5',5''-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',2''-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',2'',3'-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',2'',4'-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',2'',5',5''-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-3',4'-D₂, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-4',5',5''-D₃, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',2'',3'-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',2'',4'-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',2'',5',5''-D₅, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-3',4',5',5''-D₄, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',2'',3',4',5',5''-D₆, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',2'',3',4',5',5''-D₇, 98%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-3'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-4'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-5'-¹³C, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2'-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',3'-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-3',4'-¹³C₂, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-3',4',5'-¹³C₃, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-2',3',4',5'-¹³C₄, 99%)	Variable Lead Times	1.0+ mmole	Quote
Custom Synthesis	(2'-Deoxyribose-1',2',3',4',5'-¹³C₅, 99%)	Variable Lead Times	1.0+ mmole	Quote