Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Guanidine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Guanidine 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 Guanidine-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.
Our Guanidine-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.
Guanidine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "[13C,15N3]-Acetylguanidine" | Stable Isotopes | CS-EK-01780 | 5699-40-1 unlabeled | Enquire |
| "2,3-Dichlorobenzamidyl Guanidine 13C2" | Stable Isotopes | CS-T-52561 | 1185047-08-8 | Enquire |
| "Acetylguanidine 13C,15N3" | Stable Isotopes | CS-CX-00343 | 5699-40-1 | Enquire |
| 1-(4-Bromomethyl-2-thiazoyl)guanidine 13C3, Hydrobromide Sal... | Stable Isotopes | CS-T-49536 | 1329835-03-1 (Freebase) | Enquire |
| 1-(4-Chloromethyl-2-thiazoyl)guanidine-13C3 Hydrochloride Sa... | Stable Isotopes | CS-T-72348 | 1189443-23-9 | Enquire |
| 1-(4-Cyclopropyl-6-methylpyrimidin-2-yl)-3-phenylguanidine-1... | Stable Isotopes | CS-T-102372 | Not Available | Enquire |
| 1,1-Dimethyl-d6-2,3-bis(tert-butyloxycarbonyl)guanidine | Stable Isotopes | CS-T-101494 | Not Available | Enquire |
| 4-Aminobutyl-d8 Guanidine Dihydrochloride | Stable Isotopes | CS-T-97044 | Not Available | Enquire |
| 4-Aminobutyl-d8 Guanidine Tri-tert-butyl Ester | Stable Isotopes | CS-T-97043 | Not Available | Enquire |
| Aminoguanidine hemisulfate 13C,15N4 | Stable Isotopes | CS-CX-00360 | 478189-68-3 (Freebase) | Enquire |
| Guanidine-15N3 Hydrobromide | Stable Isotopes | CS-T-100256 | Not Available | Enquire |
| Guanidine-15N3 Hydrochloride | Stable Isotopes | CS-T-78021 | 121616-39-5 | Enquire |
| Guanidine-d5 Hydrochloride-d | Stable Isotopes | CS-T-55461 | 108694-93-5 | In Stock |
| N,N'-Diphenylguanidine-d10 | Stable Isotopes | CS-T-100418 | Not Available | Enquire |
| N-Methylguanidine D3 | Stable Isotopes | CS-T-58812 | 1020719-65-6 | Enquire |
| N-Methylguanidine-d3 Hydrochloride | Stable Isotopes | CS-T-58246 | 1246820-23-4 | Enquire |
| Phenylguanidine Nitrate-d5 | Stable Isotopes | CS-T-99885 | Not Available | Enquire |
| Sulfaguanidine-D4 | Stable Isotopes | CS-T-94033 | 57-67-0 unlabelled | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Acetylsulfaguanidine | API Standards | CS-O-36716 | 19077-97-5 | Enquire |
| Aminoguanidine Nitrate | API Standards | CS-T-02678 | 10308-82-4 | Enquire |
| Guanidine acetate | API Standards | CS-ED-00988 | 593-87-3 | Enquire |
| Guanidine Phosphate | API Standards | CS-O-16591 | Not Available | Enquire |
| Hydroxyguanidine | API Standards | CS-T-78864 | 13115-21-4 | Enquire |
| Sulfaguanidine | API Standards | CS-O-11748 | 57-67-0 | In Stock |
| Sulfaguanidine monohydrate | API Standards | CS-K-00257 | 6190-55-2 | Enquire |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1,1-Dimethyl-2,3-bis(tert-butyloxycarbonyl)guanidine | Metabolites | CS-T-91878 | 215170-99-3 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "N-[(6-Chloro-3-pyridinyl)methyl]-N-(2,2-diethoxyethyl)-N’-n... | Impurities | CS-T-72267 | 155802-59-8 | Enquire |
| "N-1,3-Benzoxazol-2-ylguanidine" | Impurities | CS-M-25435 | 39123-82-5 | Enquire |
| 1-(4-(chloromethyl)-4-hydroxy-4,5-dihydrothiazol-2-yl)guanid... | Impurities | CS-ED-02047 | 95907-34-9 | Enquire |
| 1-Cyano-3-isopropylguanidine | Impurities | CS-T-13536 | 44830-55-9 | Enquire |
| 1-β-D-Ribofuranosyl-3-aminocarbonyl guanidine | Impurities | CS-O-13992 | Not Available | Enquire |
| 1-β-D-Ribofuranosyl-3-iminohydroxymethyl guanidine | Impurities | CS-O-13993 | Not Available | Enquire |
| 2-(4-(CHLOROMETHYL)-4-HYDROXY-2-THIAZOLIN-2-YL)GUANIDINE HYD... | Impurities | CS-O-44556 | 95907-33-8 | Enquire |
| 2-(5-(chloromethyl)thiazol-2-yl)guanidine | Impurities | CS-O-44898 | 1378820-83-7 | Enquire |
| Adrenochrome Monoaminoguanidine Mesilate | Impurities | CS-T-01417 | 4009-68-1 | Enquire |
| N-Cyano-N',N''-dimethylguanidine | Impurities | CS-T-89515 | 1609-06-9 | Enquire |
| N-1H-Benzimidazol-2-ylguanidine | Impurities | CS-M-47140 | 5418-95-1 | Enquire |
| N-Formylguanidine | Impurities | CS-T-76958 | 4471-51-6 | Enquire |
| Nitrosoguanidine | Impurities | CS-ED-01250 | 674-81-7 | Enquire |
| N-Methylguanidine Hydrochloride | Impurities | CS-T-33922 | 21770-81-0 | Enquire |
| N-Methyl-N-nitro-N′-nitrosoguanidine | Impurities | CS-O-45793 | 26305-08-8 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "1,1-dimethylguanidine hydrochloride" | Intermediates | CS-EL-00976 | 22583-29-5 | Enquire |
| "1,3-Diphenylguanidine Hydrobromide" | Intermediates | CS-DJ-00379 | 93982-96-8 | Enquire |
| "2-tert-Butyl-1,1,3,3-tetramethylguanidine" | Intermediates | CS-T-69894 | 29166-72-1 | Enquire |
| "4-N-2,2-Diethoxyethylguanidine-5-chloro-2,1,3-benzothiadiaz... | Intermediates | CS-T-90723 | 1391053-77-2 | Enquire |
| "acetic acid; 1,1-diethylguanidine" | Intermediates | CS-EL-00743 | 1208081-42-8 | Enquire |
| "Carbamoyl-guanidine Amidino Urea Salt, Hydrochloride salt" | Intermediates | CS-T-10204 | 926-72-7 | Enquire |
| "N-(3,4-Dimethylphenyl)-N-[hydrazino(imino)-methyl]guanidine... | Intermediates | CS-M-34672 | 1171647-17-8 | Enquire |
| "N,N'-Di-boc-guanidine" | Intermediates | CS-AC-04096 | 154476-57-0 | Enquire |
| 1-(2-Mercaptoethyl)guanidine Sulfate | Intermediates | CS-T-82334 | 3979-00-8 | Enquire |
| 1-(2-methyl-5-nitrophenyl)guanidine nitrate | Intermediates | CS-O-31504 | 152460-08-7 | Enquire |
| 1-(4-(2-Methoxyphenyl)thiazol-2-yl)guanidine Hydrobromide | Intermediates | CS-T-82626 | 123310-81-6 | Enquire |
| 1-(4-(3-Bromophenyl)thiazol-2-yl)guanidine hydrobromide | Intermediates | CS-ED-21757 | 1006032-17-2 | Enquire |
| 1-(4-(3-Chlorophenyl)thiazol-2-yl)guanidine Hydrobromide | Intermediates | CS-T-72374 | 123310-66-7 | Enquire |
| 1-(4-(4-Methoxyphenyl)thiazol-2-yl)guanidine Hydrobromide | Intermediates | CS-T-80868 | 96996-05-3 | Enquire |
| 1-(4,5-Dimethyl-1,3-thiazol-2-yl)guanidine hydrobromide | Intermediates | CS-M-43969 | 85207-84-7 | Enquire |
| 1-(4-Chloromethyl-2-thiazoyl)guanidine Hydrochloride Salt | Intermediates | CS-T-50847 | 69014-12-6 | In Stock |
| 1-(4-cyanophenyl) guanidine | Intermediates | CS-O-32045 | 373690-68-7 | Enquire |
| 1-(4-cyanophenyl)guanidine nitrate | Intermediates | CS-EL-03990 | 5637-41-2 | Enquire |
| 1-(4-Phenoxyphenyl)guanidine nitrate | Intermediates | CS-ED-32863 | 105901-53-9 | Enquire |
| 1-(Benzylideneamino)-1-methylguanidine;hydroiodide | Intermediates | CS-ED-13092 | 113712-70-2 | Enquire |
| 1-(Pyrimidin-2-yl)guanidine | Intermediates | CS-ED-33676 | 90585-97-0 | Enquire |
| 1,1,3,3-Tetramethylguanidine | Intermediates | CS-T-61937 | 80-70-6 | In Stock |
| 1,3-Diaminoguanidine hydrochloride | Intermediates | CS-MM-09830 | 36062-19-8 | In Stock |
| 1,3-Di-boc-2-(carboxymethyl)guanidine | Intermediates | CS-T-88878 | 158478-76-3 | Enquire |
| 1,3-Di-Boc-2-(trifluoromethylsulfonyl)guanidine | Intermediates | CS-T-88538 | 207857-15-6 | Enquire |
| 1,3-Diphenylguanidine | Intermediates | CS-ED-26773 | 102-06-7 | In Stock |
| 1-[Amino(4-methylpiperazin-1-yl)methylidene]guanidine dihydr... | Intermediates | CS-ED-11079 | 18413-36-0 | Enquire |
| 1-Amino-2-methyl-3-phenylguanidine hydroiodide | Intermediates | CS-ED-06186 | 1086225-97-9 | Enquire |
| 1-Amino-3-(2,6-dimethylphenyl)guanidine hydroiodide | Intermediates | CS-ED-05920 | 68569-67-5 | Enquire |
| 1-Cyano-2-ethylguanidine | Intermediates | CS-ED-07177 | 24010-80-8 | Enquire |
| 1-Methyl-3-((tetrahydrofuran-3-yl)methyl)guanidine hydrochlo... | Intermediates | CS-ED-27222 | 939773-22-5 | Enquire |
| 1-Methyl-3-nitroguanidine | Intermediates | CS-BX-00482 | 4245-76-5 | Enquire |
| 2-(3-Hydroxybenzyl)guanidine | Intermediates | CS-O-49768 | 78406-89-0 | Enquire |
| 2,6-dichlorophenylguanidine | Intermediates | CS-ED-00439 | 39075-78-0 | Enquire |
| 2-[(2-Nitrophenyl)methylideneamino]guanidine | Intermediates | CS-ED-32313 | 102632-31-5 | Enquire |
| 2-[4-[[(E)-3-(4-fluorophenyl)-3-oxoprop-1-enyl]amino]phenyl]... | Intermediates | CS-ED-36504 | 423742-56-7 | Enquire |
| 2-Amino-1,1-dimethylguanidine hydroiodide | Intermediates | CS-ED-05645 | 33398-73-1 | Enquire |
| 2-Amino-1,3-dimethylguanidine hydroiodide | Intermediates | CS-ED-05644 | 71440-83-0 | Enquire |
| 2-Methyl-4-nitrophenylguanidine Nitrate | Intermediates | CS-T-34599 | 796738-73-3 | Enquire |
| 3-Amino-1,1,3-trimethylguanidine hydroiodide | Intermediates | CS-ED-11007 | 1803611-28-0 | Enquire |
| 3-Nitrophenylguanidine Nitrate | Intermediates | CS-T-37047 | 142992-99-2 | Enquire |
| 3-Phenyl-1-aminoguanidine hydroiodide | Intermediates | CS-ED-11157 | 56204-41-2 | Enquire |
| 4-Chlorophenylguanidine hydrochloride | Intermediates | CS-T-72854 | 14279-91-5 | Enquire |
| Aminoguanidine sulfate | Intermediates | CS-ED-05378 | 1068-42-4 | Enquire |
| Cyanoacetyl Guanidine | Intermediates | CS-T-51345 | 55034-35-0 | Enquire |
| Cyanoguanidine oxalate | Intermediates | CS-CD-00166 | 15895-49-5 | Enquire |
| Guanidine Hydrobromide | Intermediates | CS-T-25725 | 19244-98-5 | Enquire |
| Guanidine thiocyanate | Intermediates | CS-DA-00580 | 593-84-0 | Enquire |
| Guanidine, [4-(mercaptomethyl)-2-thiazolyl]- | Intermediates | CS-ED-34293 | 95853-51-3 | Enquire |
| Guanidine, N-cyano-N'-(1-methylethyl)-N''-3-pyridinyl- | Intermediates | CS-ED-07600 | 67026-34-0 | Enquire |
| N-(2-fluorobenzyl)-N-methylguanidine | Intermediates | CS-ED-30003 | 915919-83-4 | Enquire |
| N-(3,5-Dimethylphenyl)-N'-[2-(trifluoromethyl)phenyl]-guanid... | Intermediates | CS-ED-12486 | 1430208-73-3 | Enquire |
| N-(3-Methoxy-phenyl)-guanidine | Intermediates | CS-AC-04000 | 57004-60-1 | Enquire |
| N-(4-Chlorobenzyl)-N-methylguanidine | Intermediates | CS-ED-08092 | 46232-80-8 | Enquire |
| N-(4-Cyanophenyl)guanidine | Intermediates | CS-T-51379 | 5637-42-3 | Enquire |
| N-(4-Cyanophenyl)guanidine hydrochloride | Intermediates | CS-O-31974 | 373690-68-7 | Enquire |
| N-(4-Diethylaminobenzylideneamino)guanidine Acetic Acid Salt | Intermediates | CS-T-18076 | 1185244-51-2 | Enquire |
| N-(5-chloro-2,1,3-benzothiadiazol-4-yl)-guanidine | Intermediates | CS-T-72004 | 125292-37-7 | Enquire |
| N-(5-Hydroxypentyl)guanidine hydrochloride | Intermediates | CS-ED-40838 | 1049737-97-4 | Enquire |
| N-(cyclohexylmethyl)guanidine hydrobromide | Intermediates | CS-ED-07858 | 2060008-70-8 | Enquire |
| N,N'-Bis(benzyloxycarbonyl)guanidine | Intermediates | CS-ED-21855 | 10065-79-9 | Enquire |
| N-[(2-chloro-5-thiazolyl)methyl]-N'-nitro-Guanidine | Intermediates | CS-ED-00443 | 135018-15-4 | Enquire |
| N-[2-[(6-Amino-5-nitro-2-pyridinyl)amino]ethyl]guanidine Hyd... | Intermediates | CS-T-47960 | 1246816-36-3 | Enquire |
| N-[3-(Hydroxymethyl)phenyl]guanidine | Intermediates | CS-T-79715 | 437384-34-4 | Enquire |
| N-[4-(Aminomethyl)phenyl]guanidine Dihydrochloride | Intermediates | CS-T-66572 | 202979-33-7 | Enquire |
| N-Cyano-N’-(1,1-dimethylpropyl)-N’’-3-pyridinyl-guanidine | Intermediates | CS-T-73627 | 60559-98-0 | Enquire |
| p-Chlorophenylcyanoguanidine | Intermediates | CS-T-50917 | 1482-62-8 | Enquire |
| p-Chlorophenylguanidine | Intermediates | CS-T-50918 | 45964-97-4 | Enquire |
| Phenylguanidine nitrate | Intermediates | CS-M-43669 | 18860-78-1 | Enquire |
| Polyhexamethyleneguanidine phosphate | Intermediates | CS-O-45246 | 89697-78-9 | Enquire |
| tetramethylguanidine dihydrogen phosphate | Intermediates | CS-CA-00362 | 287481-42-9 | Enquire |
| Tricyclohexylguanidine | Intermediates | CS-T-87166 | 4833-41-4 | Enquire |
Glucuronides
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N1-Beta-D-Galactopyranosylamino-guanidine Hydrochloride | Glucuronides | CS-N-00092 | 109853-84-1 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1,2,3-Triisopropylguanidine | Fine Chemicals | CS-O-36903 | 121948-77-4 | Enquire |
| 1,3-Di-o-tolylguanidine | Fine Chemicals | CS-ZG-32340 | 97-39-2 | Enquire |
| 1-methyl-1-nitro-guanidine | Fine Chemicals | CS-ED-00281 | 62409-38-5 | Enquire |
| 2-(4-(CHLOROMETHYL)THIAZOL-2-YL)GUANIDINE | Fine Chemicals | CS-ZG-14990 | 81152-53-6 | Enquire |
| Aminoguanidine (hydrochloride) | Fine Chemicals | CS-ZE-24901 | 1937-19-5 | In Stock |
| Aminoguanidine sulfate monohydrate | Fine Chemicals | CS-MM-04064 | 996-19-0 | Enquire |
| Ethylene Guanidine | Fine Chemicals | CS-T-22071 | 26893-38-9 | Enquire |
| Guanidine carbonate | Fine Chemicals | CS-DB-00091 | 593-85-1 | Enquire |
| Guanidine Hydrochloride | Fine Chemicals | CS-O-11663 | 50-01-1 | In Stock |
| Guanidine Nitrate | Fine Chemicals | CS-T-25727 | 506-93-4 | In Stock |
| N-(2-Hydroxyethyl)guanidine hydrochloride | Fine Chemicals | CS-MM-06324 | 63885-25-6 | Enquire |
| N-Cyano-N′-[4-(4-morpholinyl)phenyl]guanidine | Fine Chemicals | CS-O-54942 | 454646-55-0 | Enquire |
| N-Nitroguanidine | Fine Chemicals | CS-M-42980 | 556-88-7 | In Stock |
| Polyhexamethyleneguanidine | Fine Chemicals | CS-ZH-20573 | 57028-96-3 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Aminoguanidine Hydrochloride | Building Blocks | CS-CA-00431 | 16139-18-7 | In Stock |