Famotidine

Famotidine is a histamine H2 receptor antagonist with a Ki value of 12 nM in fractionated guinea pig cerebral cortex membranes. It is selective for H2 over H1 and muscarinic receptors (Kis = 4 and 28 µM, respectively, in bovine cerebral cortex). Famotidine inhibits histamine-induced acid secretion in isolated canine parietal cells (IC50 = 0.6 µM). It also suppresses histamine-induced gastric acid secretion in dogs when administered orally and in anesthetized rats when administered intraduodenally (ID50s = 10 and 400 µg/kg, respectively). Formulations containing famotidine have been used in the treatment of ulcers, gastroesophageal reflux disease (GERD), and heartburn, as well as to decrease the risk of gastrointestinal toxicity associated with non-steroidal anti-inflammatory drugs (NSAIDs).Formal Name: 3-[[[2-[(aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]-N-(aminosulfonyl)-propanimidamide. CAS Number: 76824-35-6. Synonyms: MK-208, YM-11170. Molecular Formula: C8H15N7O2S3. Formula Weight: 337.5. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 30 mg/ml, DMSO: 30 mg/ml, Ethanol: slightly soluble. lambdamax: 289 nm. SMILES: NS(NC(CCSCC1=CSC(NC(N)=N)=N1)=N)(=O)=O. InChi Code: InChI=1S/C8H15N7O2S3/c9-6(15-20(12,16)17)1-2-18-3-5-4-19-8(13-5)14-7(10)11/h4H,1-3H2,(H2,9,15)(H2,12,16,17)(H4,10,11,13,14). InChi Key: XUFQPHANEAPEMJ-UHFFFAOYSA-N.