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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Guanosine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Guanosine impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Guanosine-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Guanosine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
[1',2',3',4',5'-13C5]2'-deoxyguanosine monohydrate Stable Isotopes CS-OC-00295 312693-72-4 (unlabeled) Enquire
[1',2',3',4',5'-13C5]guanosine 5'-monophosphate disodium sal... Stable Isotopes CS-OC-00431 5550-12-9 (unlabeled) Enquire
[1',2',3',4',5'-13C5]guanosine monohydrate Stable Isotopes CS-OC-00296 118-00-3 (unlabeled) Enquire
[1'-D]2'-deoxyguanosine monohydrate Stable Isotopes CS-OC-00289 312693-72-4 (unlabeled) Enquire
[1'-D]guanosine monohydrate Stable Isotopes CS-OC-00288 118-00-3 (unlabeled) Enquire
[2',2''-D2]2'-deoxyguanosine monohydrate Stable Isotopes CS-OC-00297 312693-72-4 (unlabeled) Enquire
[2'-D]guanosine monohydrate Stable Isotopes CS-OC-00298 118-00-3 (unlabeled) Enquire
[3'-D]2'-deoxyguanosine monohydrate Stable Isotopes CS-OC-00294 312693-72-4 (unlabeled) Enquire
[3'-D]guanosine monohydrate Stable Isotopes CS-OC-00299 118-00-3 (unlabeled) Enquire
1, N2-Etheno-2’-deoxyguanosine-13C5 Stable Isotopes CS-T-103086 108929-11-9(Unlabelled) Enquire
1'-Deoxyguanosine Monohydrate-1’-d Stable Isotopes CS-T-103192 312693-72-4(Unlabelled) Enquire
2-(Dimethylamino)guanosine-d6 Stable Isotopes CS-T-95378 2140-67-2(Unlabeled) Enquire
2’,3’,5’-Tri-O-acetyl Guanosine-13C2,15N Stable Isotopes CS-T-99771 Not Available Enquire
2’,3’,5’-Tri-O-acetyl-N2,N2-dimethyl Guanosine-D6 Stable Isotopes CS-T-99772 Not Available Enquire
2''-C-Beta-Methyl-d3-Guanosine Stable Isotopes CS-O-46959 374750-30-8 (Unlabelled) In Stock
2'-Deoxy-6-thio Guanosine-13C, 15N2 Stable Isotopes CS-T-100539 Not Available Enquire
2-DEOXYGUANOSINE H2O RIBOSE-D2 Stable Isotopes CS-R-00255 478511-28-3 Enquire
2'-Deoxyguanosine-1 13C Monohydrate Stable Isotopes CS-T-51980 478511-26-1 Enquire
2'-Deoxyguanosine-1',2',3',4',5'-13C5 Monohydrate Stable Isotopes CS-T-96602 Not Available Enquire
2'-Deoxyguanosine-13C10,15N5 Stable Isotopes CS-T-95692 961-07-9 (Unlabeled) Enquire
2-Deoxyguanosine-15N5 Stable Isotopes CS-P-02796 686353-29-7 Enquire
2'-Deoxyguanosine-5',5''-d2 Monohydrate Stable Isotopes CS-T-96601 Not Available Enquire
2'-Deoxy-N-ethylguanosine-d6 Stable Isotopes CS-T-102919 101803-03-6(Unlabelled) Enquire
2'-O-Methyl Guanosine-d3 Stable Isotopes CS-T-103038 2140-71-8(Unlabelled) Enquire
3',5'-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]... Stable Isotopes CS-T-102772 85335-72-4(Unlabelled) Enquire
3',5'-O-[Tetrakis(1-methylethyl)-1,3-disiloxanediyl]guanosin... Stable Isotopes CS-T-102265 Not Available Enquire
3’,5’-Di-O-tert-butyldimethylsilyl-2'-deoxy-8-[(3-methyl-8-m... Stable Isotopes CS-T-98205 Not Available Enquire
6-Methylthioguanosine Monophosphate-d3 Stable Isotopes CS-T-96496 Not Available Enquire
6-O-Methyl Guanosine-d4 (major) Stable Isotopes CS-T-102999 7803-88-5(Unlabelled) Enquire
6-Thioguanosine Triphosphate-13C,15N2 Triethylamine Salt Stable Isotopes CS-T-98949 Not Available Enquire
7-Methylguanosine 5'-Monophosphate-d3 Stable Isotopes CS-T-103089 22976-65-4 Enquire
8-Aminoguanosine-13C2,15N Stable Isotopes CS-T-100869 Not Available Enquire
8-Bromo-2’,3’,5’-tri-O-acetylguanosine-13C2,15N Stable Isotopes CS-T-100727 Not Available Enquire
8-Bromo-2'-deoxyguanosine-13C15N2 Stable Isotopes CS-O-57844 ---- Enquire
8-Bromoguanosine-13C,15N2 Stable Isotopes CS-T-102249 Not Available Enquire
8-Bromoguanosine-13C2,15N Stable Isotopes CS-T-100735 Not Available Enquire
8-Hydroxy Guanosine-13C,15N2 Stable Isotopes CS-T-96543 ---- Enquire
a-Methyl-γ-hydroxy-1,N2-propano-2’-deoxyguanosine-13C,15N2(M... Stable Isotopes CS-T-96498 Not Available Enquire
Guanosine 3’,5’-Cyclic Monophosphate-13C5 Sodium Salt Stable Isotopes CS-T-96553 Not Available Enquire
Guanosine 3’,5’-Cyclic-13C3,15N4 Monophosphate Stable Isotopes CS-T-96552 Not Available Enquire
Guanosine 3’,5’-Cyclic-13C5,15N5 Monophosphate Stable Isotopes CS-T-96554 Not Available Enquire
Guanosine 3′,5′-cyclic monophosphate 13C15N3 Stable Isotopes CS-O-47099 7665-99-8 (Unlabelled) Enquire
guanosine diphosphate-β-L-[UL-13C6]fucose, disodium salt Stable Isotopes CS-OC-00277 15839-70-0 (unlabeled) Enquire
Guanosine-1 13C Monohydrate Stable Isotopes CS-T-55468 478511-32-9 Enquire
Guanosine-1’-13C Hydrate Stable Isotopes CS-T-96555 Not Available Enquire
Guanosine-13C,15N2 5’-Monophosphate (Triethylammonium Salt) Stable Isotopes CS-T-101357 Not Available Enquire
Guanosine-13C10, 15N5 5'-triphosphate sodium salt Stable Isotopes CS-ED-42296 285978-17-8 Enquire
Guanosine-13C5 5’-Monophosphate Stable Isotopes CS-T-102854 85-32-5(Unlabelled) Enquire
Guanosine-13C5,15N5 Stable Isotopes CS-T-96556 Not Available Enquire
Guanosine-5',5''-d2 Monohydrate Stable Isotopes CS-T-55469 478511-34-1 Enquire
N1-Methylguanosine-CD3 Stable Isotopes CS-T-103844 2140-65-0(Unlabelled) Enquire
N2,3-Etheno-2'-deoxy Guanosine-13C2,D, Major Stable Isotopes CS-T-96574 Not Available Enquire
N2,3-Etheno-2'-deoxy Guanosine-d3 Stable Isotopes CS-T-96575 Not Available Enquire
O6-(2-Hydroxy-1-methylethyl)-2’-deoxyguanosine-d3 Stable Isotopes CS-T-98847 Not Available Enquire
O6-(2-Hydroxyethyl-d4)-2'-deoxyguanosine Stable Isotopes CS-T-96547 ---- Enquire
O6-(2-Hydroxypropyl)-2’-deoxyguanosine-d3 Stable Isotopes CS-T-98846 Not Available Enquire
O6-Benzyl-N2,3-etheno Guanosine-13C2,d Stable Isotopes CS-T-96635 Not Available Enquire
O6-Ethyl-2’-deoxyguanosine-d5 Stable Isotopes CS-T-100328 Not Available Enquire
O-6-Methyl-2'-deoxyguanosine-D3 Stable Isotopes CS-T-102984 99104-20-8 Enquire
p-Methoxybenzyl O6-(2-Hydroxypropyl)-2’-deoxyguanosine-d3 Stable Isotopes CS-T-102669 Not Available Enquire
Thioguanosine 5’-Phosphate-13C,15N2 Stable Isotopes CS-T-96465 Not Available Enquire
Thioguanosine Diphosphate-13C,15N2 Stable Isotopes CS-T-98950 Not Available Enquire
2’-Deoxyguanosine-13C,15N2 Stable Isotopes CS-T-95691 Not Available Enquire
2-DEOXYGUANOSINE 13C10, 15N5 Stable Isotopes CS-R-00242 961-07-9 (Unlabeled) Enquire
2-DEOXYGUANOSINE 5-MONOPHOSPHATE 15N5 Stable Isotopes CS-R-00245 902-04-5 (Unlabeled) Enquire
2'-Deoxyguanosine 5'-monophosphate-13C1015N5 Stable Isotopes CS-O-53283 ---- Enquire
2-DEOXYGUANOSINE 5-TRIPHOSPHATE, AMMONIUM SALT 15N5 Stable Isotopes CS-R-00247 2564-35-4 (Free Acid) Enquire
2-DEOXYGUANOSINE H2O 15N5 Stable Isotopes CS-R-00253 961-07-9 (Unlabeled) Enquire
2-DEOXYGUANOSINE PHOSPHORAMIDATE 15N5 Stable Isotopes CS-R-00252 1151509-36-2 (Unlabeled) Enquire
2-DEOXYGUANOSINE PHOSPHORAMIDITE 13C10,15N5 Stable Isotopes CS-R-00251 1151509-36-2 (Unlabeled) Enquire
8-Bromo-2’-deoxyguanosine-13C,15N2 Stable Isotopes CS-T-95674 Not Available Enquire
8-Oxo-2’-deoxyguanosine-13C,15N2 5’-Triphosphate Triethylami... Stable Isotopes CS-T-102267 Not Available Enquire
8-Oxo-2’-deoxyguanosine-13C,15N2 Stable Isotopes CS-T-95758 Not Available Enquire
Guanosine 13C,15N2 6-(O-Methyloxime) Stable Isotopes CS-T-55474 197228-02-7 Enquire
Guanosine 13C,15N2 Hydrate Stable Isotopes CS-T-55467 197227-95-5 Enquire
Guanosine monohydrate 13C5 Stable Isotopes CS-EK-00318 159496-14-7 Enquire
GUANOSINE-13C10,15N5 5'-MONOPHOSPHATE Stable Isotopes CS-O-53292 202406-70-0 Enquire
Guanosine-13C5 5’-Monophosphate (Triethylammonium Salt) Stable Isotopes CS-T-101356 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guanosine API CS-T-55466 118-00-3 In Stock
3’-Deoxyguanosine API CS-T-73280 3608-58-0 Enquire
Isoguanosine Hydrate API CS-T-56809 359436-55-8 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
6-Thioguanosine-5'-O-triphosphate Metabolite CS-N-00292 17670-19-8 Enquire
7-Deaza-2'-C-methylguanosine Metabolite CS-N-00155 443642-38-4 Enquire
7-Deaza-2'-deoxy-7-iodoguanosine Metabolite CS-N-00162 172163-62-1 Enquire
7-Deaza-2'-deoxyguanosine Metabolite CS-N-00166 86392-75-8 Enquire
8-Thioguanosine Metabolite CS-N-00291 26001-38-7 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Methylguanosine Impurity CS-ED-41838 2140-65-0 Enquire
2'-Deoxyguanosine Hydrate Impurity CS-EO-03607 207121-55-9 Enquire
8-Benzyloxy-2'-deoxyguanosine Impurity CS-T-48954 96964-90-8 Enquire
[7R-(7a,8ß,9a,10a)]-2’-deoxy-N-(7,8,9,10-tetrahydro-7,8,9-tr... Impurity CS-T-73571 66183-61-7 Enquire
2-(Dimethylamino)guanosine Impurity CS-T-53375 2140-67-2 Enquire
2'-(N-Methylanthraniloyl) Guanosine 3',5'-Cyclic Monophospha... Impurity CS-T-57961 221905-46-0 Enquire
2’-Deoxy-5’-O-DMT-N2-isobutyrylguanosine 3’-CE Phosphoramidi... Impurity CS-T-73920 93183-15-4 Enquire
2’-Deoxyisoguanosine Impurity CS-T-73171 106449-56-9 Enquire
2-Amino-2-deoxyguanosine Impurity CS-DU-00002 60966-26-9 Enquire
2'-Deoxy-2'-fluoroguanosine Impurity CS-T-51958 78842-13-4 Enquire
2'-Deoxy-5-azacytidylyl-(3'5')-2'-deoxy-guanosine Sodium Sal... Impurity CS-T-51917 929904-85-8 Enquire
2'-Deoxyguanosine Impurity CS-O-39518 961-07-9 Enquire
3',5'-Di-O-acetyl O6-Benzyl-2'-deoxyguanosine Impurity CS-T-52370 144640-75-5 Enquire
3',5'-O-[Tetrakis(1-methylethyl)-1,3-disiloxanediyl]guanosin... Impurity CS-T-61919 88183-82-8 Enquire
3'-De(phosphinicooxy)guanylyl-1H-1,2,3-triazole-1,4-diyl-(3'... Impurity CS-T-73255 1513874-09-3 Enquire
3-Deazaguanosine Impurity CS-N-00174 56039-11-3 Enquire
5'-Hydrazino-5'-deoxyguanosine Impurity CS-N-00080 1189743-60-9 Enquire
5'-O-Acetyl-3'-azido-2',3'-dideoxy-N2-palmitoylguanosine Impurity CS-N-00126 144742-33-6 Enquire
5'-O-Tosylguanosine Impurity CS-T-62158 39947-33-6 Enquire
7-Thio-8-oxoguanosine Impurity CS-T-62007 122970-43-8 Enquire
8-(4-Chlorophenylthio)guanosine 3’,5’-cyclic Monophosphate S... Impurity CS-T-72576 51239-26-0 Enquire
8-(Benzyloxy)guanosine Impurity CS-T-48993 3868-36-8 Enquire
8-Chloro-2'-deoxyguanosine Impurity CS-N-00145 437715-62-3 Enquire
8-Hydroxy Guanosine Impurity CS-T-56064 3868-31-3 Enquire
8-Nitroguanosine 2',3',5'-Triacetate Impurity CS-T-59429 1096020-95-9 Enquire
8-Oxo-2-deoxyguanosine Impurity CS-T-60013 88847-89-6 Enquire
8-Oxo-N2-isobutyryl-2’-deoxyguanosine Impurity CS-T-84163 136859-76-2 Enquire
Carbocyclic 2'-deoxyguanosine 5'-triphosphate Impurity CS-N-00133 118905-01-4 Enquire
N-(2-Amino-3,8-dimethylimidazo[4,5-f]quinoxalin-5-yl) 2'-Deo... Impurity CS-T-47752 142038-30-0 Enquire
N-(4,4'-Dimethoxytrityl)-8-bromoguanosine 2',3',5'-Triacetat... Impurity CS-T-53401 1096020-93-7 Enquire
N-(4,4'-Dimethoxytrityl)-8-nitroguanosine 2',3',5'-Triacetat... Impurity CS-T-53402 1096020-94-8 Enquire
N-[(Dimethylamino)methylene]-2',3'-O-(methoxymethylene)guano... Impurity CS-T-53593 1315092-28-4 Enquire
O6-(2-Hydroxyethyl)-2'-deoxyguanosine Impurity CS-T-56012 111447-35-9 Enquire
O6-Benzyl-N2,3-etheno-2'-deoxy-3',5'-O-[tetrakis(isopropyl)-... Impurity CS-T-48882 148437-94-9 Enquire
S-(2-Hydroxy-5-nitrobenzoyl)-6-thioguanosine Impurity CS-N-00084 41094-07-9 Enquire
α-2’-Deoxyguanosine Impurity CS-T-73139 19916-78-0 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2',3',5'-Tri-O-acetyl Guanosine Intermediate CS-T-61872 6979-94-8 In Stock
2'-Deoxyguanosine Monohydrate Intermediate CS-T-51979 312693-72-4 In Stock
N2-Methyl-2’-deoxyguanosine Intermediate CS-O-57739 19916-77-9 Enquire
N-Isobutyryl-2',3'-Acetyl-Guanosine Intermediate CS-O-50097 163586-86-5 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
8-Bromoguanosine Fine Chemicals CS-T-08295 4016-63-1 Enquire
6-Thioguanosine diphosphate Fine Chemicals CS-ZG-53023 16541-19-8 Enquire
7-Deazaguanosine Fine Chemicals CS-T-51648 62160-23-0 Enquire
8-Aminoguanosine Fine Chemicals CS-T-47842 3868-32-4 Enquire
N2-Benzoylguanosine Fine Chemicals CS-T-48724 3676-72-0 Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Deoxyguanosine monohydrate Secondary Standards CS-SS-26277-50MG 0961-07-9 Enquire
Guanosine Secondary Standards CS-SS-25245-100MG 118-00-3 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
7-Methyl-d3-guanosine Stable Isotope Reagent CS-C-01419 - Enquire
Guanosine 3’,5’-Cyclic-13C,15N2 Monophosphate Stable Isotope Reagent CS-T-95738 7665-99-8(Unlabelled) Enquire
Guanosine-1',2',3',4',5'-13C5 hydrate Stable Isotope Reagent CS-T-95737 118-00-3(Unlabelled) Enquire


Ligands

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guanosine 5'-diphosphate Ligands CS-ED-01870 146-91-8 Enquire


Nucleic Acid

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5'-O-DMT-N2-DMF-guanosine Nucleic Acid CS-O-50241 126922-60-9 Enquire
Guanosine-5'-diphosphate disodium salt Nucleic Acid CS-AC-09994 7415-69-2 Enquire


Peptide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guanosine-5'-triphosphate Peptide CS-ED-02378 86-01-1 Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N2-Isobutyryl-2-deoxyguanosine Pesticide Standards CS-BP-00019 68892-42-2 Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guanosine-5-Monophosphate Disodium Salt (5- GMP-Na2) 96% Biochemicals CS-SR-00323 5550-12-9 Enquire
Guanosine-5-Triphosphate Disodium Salt (5-GTP- Na2) 90% Biochemicals CS-SR-00324 56001-37-7 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
8-Bromoguanosine 3’, 5’ -cyclic monophosphoric acid Building Blocks CS-T-67568 31356-94-2 Enquire
Guanosine 5'-Diphosphate Triammonium Salt Building Blocks CS-T-55473 79441-34-2 Enquire


Carbohydrates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2'-Deoxyguanosine-5'-O-(1-Boranotriphosphate Carbohydrates CS-O-48961 Not Available Enquire
5'-O-DMT-N2-isobutyryl-2'-O-(2-methoxyethyl)-guanosine 3'-CE... Carbohydrates CS-T-94045 251647-55-9 Enquire
6-thioguanosine-5'-monophosphate Carbohydrates CS-ED-00731 15867-02-4 Enquire


Enzymes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Guanosine kinase (EaGSK) Enzymes CS-O-50437 Not Available Enquire