Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Famotidine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Famotidine 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 Famotidine-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 Famotidine-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.
Famotidine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Famotidine 13C | Stable Isotopes | CS-EK-00349 | 76824-35-6 unlabeled | Enquire |
| Famotidine Acid Methyl Ester-13C3 | Stable Isotopes | CS-T-102352 | Not Available | Enquire |
| Famotidine-13C | Stable Isotopes | CS-O-02664 | 76824-35-6(Unlabeled) | In Stock |
| Famotidine-d4 | Stable Isotopes | CS-O-15224 | 2707433-64-3 | In Stock |
| Famotidine 13CD3 | Stable Isotopes | CS-O-32963 | 76824-35-6 (Unlabeled) | Enquire |
| Famotidine-13C,d4 Acid Impurity | Stable Isotopes | CS-T-74868 | 1324230-60-5 | Enquire |
| Famotidine-13C,d4 Amide Impurity | Stable Isotopes | CS-T-77282 | 1327321-45-8 | Enquire |
| Famotidine-13C3 | Stable Isotopes | CS-T-76302 | 1185241-48-8 | Enquire |
| Famotidine-d4 (Major) | Stable Isotopes | CS-T-95126 | Not Available | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Famotidine | API | CS-O-11647 | 76824-35-6 | In Stock |
| Famotidine hydrochloride | API | CS-ED-01089 | Not Available | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Famotidine Sulfoxide | Metabolite | CS-T-16886 | 90237-03-9 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (2-((diaminomethylene) amino)thiazol-5 yl)methyl carbamimido... | Impurity | CS-O-43186 | 772304-31-1 | Enquire |
| (Z)-3-(((2-((diaminomethylene)amino)thiazol-5-yl)methyl)thio... | Impurity | CS-O-43189 | Not Available | Enquire |
| 2-(5-(chloromethyl)thiazol-2-yl)guanidine | Impurity | CS-O-44898 | 1378820-83-7 | Enquire |
| Famotidine Acid Methyl Ester | Impurity | CS-T-23422 | 76824-14-1 | In Stock |
| Famotidine Cyclic Impurity | Impurity | CS-O-36121 | 2169078-41-3 | Enquire |
| Famotidine EP Impurity A | Impurity | CS-ED-00772 | 124646-10-2 | In Stock |
| Famotidine EP impurity A hydrochloride | Impurity | CS-T-23415 | 76833-47-1 | In Stock |
| Famotidine EP impurity B | Impurity | CS-T-23416 | 89268-62-2 | Enquire |
| Famotidine EP Impurity B (Dimaleate salt) | Impurity | CS-EO-03550 | 109467-08-5 | Enquire |
| Famotidine EP Impurity B (Mandeleate salt) | Impurity | CS-EO-03549 | 89268-62-2 (Freebase) | Enquire |
| Famotidine EP Impurity C Hydrochloride | Impurity | CS-T-16887 | 76824-17-4 | In Stock |
| Famotidine EP impurity D | Impurity | CS-T-47861 | 76824-16-3 | In Stock |
| Famotidine EP impurity E | Impurity | CS-T-49330 | 129083-44-9 | In Stock |
| Famotidine EP Impurity F | Impurity | CS-T-23419 | 107880-74-0 | In Stock |
| Famotidine EP impurity G | Impurity | CS-T-15632 | 76823-97-7 | In Stock |
| Famotidine EP Impurity I HCl salt | Impurity | CS-EO-03548 | 1020719-36-1 (Freebase) | Enquire |
| Famotidine glucose adduct | Impurity | CS-O-52430 | ---- | Enquire |
| Famotidine Impurity 10 HCl | Impurity | CS-O-44896 | 1644079-28-6 | Enquire |
| Famotidine Impurity 17 | Impurity | CS-O-57233 | ---- | Enquire |
| FAMOTIDINE IMPURITY C | Impurity | CS-O-49735 | 106433-44-7 | Enquire |
| Famotidine Related Compound A Dihydrochloride | Impurity | CS-T-75625 | 88061-72-7 | In Stock |
| Famotidine S,S Diguanidino Impurity | Impurity | CS-O-59968 | ---- | Enquire |
| N-sulfamoylacrylimidamide | Impurity | CS-O-46832 | 95853-46-6 | Enquire |
| N-Sulphamyl-3-Chloro Propionamidine Hydrochloride | Impurity | CS-CK-00006 | 106649-95-0 | In Stock |
| 1-(4-(chloromethyl)-4-hydroxy-4,5-dihydrothiazol-2-yl)guanid... | Impurity | CS-ED-02047 | 95907-34-9 | Enquire |
| Dediaminosulfonyl Hydroxymethyl Famotidine | Impurity | CS-T-14687 | 76823-94-4 | Enquire |
| Famotidine Adduct Impurity | Impurity | CS-EO-00738 | 1994267-84-3 | Enquire |
| Famotidine EP Impurity I Hydrochloride | Impurity | CS-P-06992 | 1020719-36-1 (free base) | Enquire |
| Famotidine Impurity 1 Hydrochloride | Impurity | CS-P-06963 | 100599-91-5 | Enquire |
| Famotidine Impurity 8 | Impurity | CS-EO-01971 | 802257-93-8 | Enquire |
| Famotidine Impurity H | Impurity | CS-T-93830 | 106649-96-1 | Enquire |
| Famotidine Impurity I | Impurity | CS-O-13763 | 1020719-36-1 | Enquire |
| Famotidine Sulfamide dimer | Impurity | CS-O-41069 | 13598-81-7 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-(4-Chloromethyl-2-thiazoyl)guanidine Hydrochloride Salt | Intermediate | CS-T-50847 | 69014-12-6 | In Stock |
| S-(2-Guanidino-4-thiazolyl)methylisothiourea Dihydrochloride | Intermediate | CS-T-25744 | 88046-01-9 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-[[[2-[(Diaminomethylene]amino-4-thiazolyl]thio]propionitri... | Fine Chemicals | CS-T-16889 | 76823-93-3 | In Stock |
| (2-amino-1,3-thiazol-4-yl)methyl carbamimidothioate | Fine Chemicals | CS-ED-01922 | 20166-91-0 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-((2-((carboxymethyl) (nitroso) amino)ethyl)amino)acetic ac... | Nitrosamine | CS-O-56874 | --- | Enquire |
| Famotidine Nitroso Impurity 1 | Nitrosamine | CS-EO-02836 | Not Available | Enquire |
| N-Nitroso Famotidine -II | Nitrosamine | CS-EO-01247 | Not Available | Enquire |
| N-Nitroso Famotidine - I | Nitrosamine | CS-EO-01246 | Not Available | Enquire |
| N-Nitroso Famotidine amidine | Nitrosamine | CS-O-52981 | ---- | Enquire |
| N-Nitroso Famotidine EP impurity B | Nitrosamine | CS-O-52980 | ---- | Enquire |
| N-Nitroso famotidine-III | Nitrosamine | CS-O-40553 | Not Available | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Famotidine | Secondary Standards | CS-SS-24035 | 76824-35-6 | Enquire |
| Famotidine | Secondary Standards | CS-SS-24035-250MG | 76824-35-6 | Enquire |
| Famotidine | Secondary Standards | CS-SS-24035-1GM | 76824-35-6 | Enquire |
| Famotidine Related Compound B | Secondary Standards | CS-SS-25648-50MG | 89268-62-2 | Enquire |
| Famotidine Related Compound C | Secondary Standards | CS-SS-25649-50MG | 106433-44-7 | Enquire |
| Famotidine Related Compound D | Secondary Standards | CS-SS-25650-50MG | 76824-16-3 | Enquire |
| Famotidine Related Compound E | Secondary Standards | CS-SS-25651-50MG | 129083-44-9 | Enquire |
| Famotidine Related Compound F | Secondary Standards | CS-SS-25647-50MG | 107880-74-0 | Enquire |
Pharmaceutical Stds.
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Famotidine Acid Methyl Ester Hydrochloride (Famotidine Impur... | Pharmaceutical Stds. | CS-TB-51082 | 1798006-30-0 | Enquire |