CAS号: 65870-52-2 英文名称: Cephalexin sodium impurity VI 英文同义词: Cephalexin sodium impurity VI;Cefalexin Diketopiperazine Delta-3 Isomer;Δ4-Cephalexin Diketopiperazine (Technical Grade);2-(3,6-dioxo-5-phenylpiperazin-2-yl)-5-methyl-5,6-dihydro-2H-1,3-thiazine-4-carboxylic acid;2H-1,3-Thiazine-4-carboxylic acid, 2-(3,6-dioxo-5-phenyl-2-piperazinyl)-5,6-dihydro-5-methyl- 中文名称: Cephalexin sodium impurity VI 中文同义词: 分子式: C16H17N3O4S 分子量: 347.39 密度 : 1.56±0.1 g/cm3(Predicted) 酸度系数(pKa): 11.96±0.60(Predicted)