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CAS号: 30246-33-4 英文名称: 7-Amino-3-[(5-methyl-1,3,4-thiadiazol-2-ylthio)methyl]-3-cephem-4-carboxylic Acid 英文同义词: TDA;7-TDA;Cefazolin IMpurity A;Cefazolin EP Impurity A;Cefazolin Impurity EP-A;Cefazolin USP Impurity K;Cefuroxime nucleus (7-TDA);Parent nucleus of cefazedone (7-TDA);Cefazolin Impurity 7(Cefazolin EP Impurity A);7-AMINO-3-[(5-METHYL-1,3,4-THIADIAZOL-2-YL)THIOMETHYL]CEPHALOSPHORANIC ACID 中文名称: 头孢西酮母核 中文同义词: 头孢唑啉母核;头孢西酮母核;头孢唑啉杂质A;头孢唑啉EP杂质A;头孢唑啉USP杂质K;头孢唑林杂质EP-A;头孢唑啉钠有关杂质A;头孢唑林杂质A(EP);头孢唑啉母核(7-TDA);头孢西酮母核(7-TDA) 分子式: C11H12N4O3S3 分子量: 344.43 沸点 : 678.2±65.0 °C(Predicted) 密度 : 1.72±0.1 g/cm3(Predicted) 酸度系数(pKa): 2.52±0.50(Predicted)