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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.

Famotidine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"Famotidine-13C,d4 Amide Impurity" Stable Isotopes CS-T-77282 1327321-45-8 Enquire
Famotidine 13C Stable Isotopes CS-EK-00349 76824-35-6 unlabeled Enquire
Famotidine 13CD3 Stable Isotopes CS-O-32963 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-13C,d4 Acid Impurity Stable Isotopes CS-T-74868 1324230-60-5 Enquire
Famotidine-13C3 Stable Isotopes CS-T-76302 1185241-48-8 Enquire
Famotidine-d4 Stable Isotopes CS-O-15224 2707433-64-3 In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Famotidine API Standards CS-O-11647 76824-35-6 In Stock
Famotidine hydrochloride API Standards CS-ED-01089 Not Available Enquire


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Famotidine Sulfoxide Metabolites CS-T-16886 90237-03-9 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2-((diaminomethylene) amino)thiazol-5 yl)methyl carbamimido... Impurities CS-O-43186 772304-31-1 Enquire
(Z)-3-(((2-((diaminomethylene)amino)thiazol-5-yl)methyl)thio... Impurities CS-O-43189 Not Available Enquire
1-(4-(chloromethyl)-4-hydroxy-4,5-dihydrothiazol-2-yl)guanid... Impurities CS-ED-02047 95907-34-9 Enquire
2-(5-(chloromethyl)thiazol-2-yl)guanidine Impurities CS-O-44898 1378820-83-7 Enquire
Dediaminosulfonyl Hydroxymethyl Famotidine Impurities CS-T-14687 76823-94-4 Enquire
Famotidine Acid Methyl Ester Impurities CS-T-23422 76824-14-1 In Stock
Famotidine Adduct Impurity Impurities CS-EO-00738 1994267-84-3 Enquire
Famotidine Cyclic Impurity Impurities CS-O-36121 2169078-41-3 Enquire
Famotidine EP Impurity A Impurities CS-ED-00772 124646-10-2 In Stock
Famotidine EP impurity A hydrochloride Impurities CS-T-23415 76833-47-1 In Stock
Famotidine EP impurity B Impurities CS-T-23416 89268-62-2 In Stock
Famotidine EP Impurity B (Dimaleate salt) Impurities CS-EO-03550 109467-08-5 Enquire
Famotidine EP Impurity C Hydrochloride Impurities CS-T-16887 76824-17-4 In Stock
Famotidine EP impurity D Impurities CS-T-47861 76824-16-3 In Stock
Famotidine EP impurity E Impurities CS-T-49330 129083-44-9 In Stock
Famotidine EP Impurity F Impurities CS-T-23419 107880-74-0 In Stock
Famotidine EP impurity G Impurities CS-T-15632 76823-97-7 In Stock
Famotidine EP Impurity I Hydrochloride Impurities CS-P-06992 1020719-36-1 (free base) Enquire
Famotidine glucose adduct Impurities CS-O-52430 Not Available Enquire
Famotidine Impurity 1 Hydrochloride Impurities CS-P-06963 100599-91-5 Enquire
Famotidine Impurity 10 HCl Impurities CS-O-44896 1644079-28-6 Enquire
Famotidine Impurity 17 Impurities CS-O-57233 Not Available Enquire
FAMOTIDINE IMPURITY C Impurities CS-O-49735 106433-44-7 Enquire
Famotidine Impurity H Impurities CS-T-93830 106649-96-1 Enquire
Famotidine Impurity I Impurities CS-O-13763 1020719-36-1 Enquire
Famotidine Nitroso Impurity 1 Impurities CS-EO-02836 Not Available Enquire
Famotidine Related Compound A Dihydrochloride Impurities CS-T-75625 88061-72-7 In Stock
Famotidine S,S Diguanidino Impurity Impurities CS-O-59968 Not Available Enquire
Famotidine Sulfamide dimer Impurities CS-O-41069 13598-81-7 Enquire
N-Nitroso Famotidine - I Impurities CS-EO-01246 Not Available Enquire
N-Nitroso Famotidine -II Impurities CS-EO-01247 Not Available Enquire
N-sulfamoylacrylimidamide Impurities CS-O-46832 95853-46-6 Enquire
N-Sulphamyl-3-Chloro Propionamidine Hydrochloride Impurities CS-CK-00006 106649-95-0 In Stock