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CAS号: 52378-40-2 英文名称: N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea 英文同义词: Einecs 257-889-5;Cimetidine EP IMP A;Cimetidine impurity A;Cimetidine EP Impurity A;Cimetidine Impurity A(EP);3-Cyano-2-methyl-1-[2-[[(5-methyl-1;Cimetidine Impurity 1（Cimetidine EP Impurity A）;N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea;1-CYANO-2-METHYL-1-[2-(5-METHYLIMIDAZOL-4-YL-METHYLTHIO)ETHYL]ISO-THIO UREA;N-Cyano-N'-[2-[(4-methyl-5-imidazolyl)methylthio]ethyl]-S-methylisothiourea 中文名称: 西咪替丁二缩物 中文同义词: 西咪替丁二缩物;西咪替丁杂质A;西咪替丁EP杂质A;西咪替丁杂质A(EP);西咪替丁杂质A(EP) 标准品;N-氰基-N-[2-(5-甲基咪-4-甲硫)乙基]-S-甲基异硫脲;N-氰基-N-[2-(5-甲基咪唑-4-甲硫)乙基]-S-甲基异硫脲;N-腈基-N-[2-(4-甲基-5-咪唑基)甲硫基]乙基-S-甲基异硫脲;N-氰基-N'-[2-(5-甲基-4-咪唑基)-甲基硫乙基]-S-甲基异硫脲;N-氰基-N'-[2-[(4-甲基-5-咪唑基)甲硫基]乙基]-S-甲基异硫脲 分子式: C10H15N5S2 分子量: 269.39 熔点 : 148-150℃ 沸点 : 501.5±60.0 °C(Predicted) 密度 : 1.29±0.1 g/cm3(Predicted) 酸度系数(pKa): 14.11±0.10(Predicted)