CAS号: 947692-14-0 英文名称: CefpodoxiMe Proxetil IMpurity B 英文同义词: CefpodoxiMe Proxetil IMpurity B;Cefpodoxime Proxetil EP Impurity B;Cefpodoxime Proxetil Impurity 2（EP Impurity B）;Cefpodoxime Proxetil EP Impurity B (Mixture of Diastereomers);Cefpodoxime Proxetil Impurity 2(Cefpodoxime Proxetil EP Impurity B);1-propan-2-yloxycarbonyloxyethyl (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate;5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-3-methyl-8-oxo-, 1-[[(1-methylethoxy)carbonyl]oxy]ethyl ester, (6R,7R)-;Cefpodoxime Proxetil impurity 2/Cefpodoxime Proxetil EP Impurity B/(R)-1-((isopropoxycarbonyl)oxy)ethyl (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate;Cefpodoxime proxetil Impurity B:( (6R,7R)-7-[[(2Z)-2-(2-Αmino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid 1-[[(1-Methylethoxy)carbonyl]oxy]ethyl Ester(ADCA-analogue of cefpodoxime proxeti 中文名称: 头孢泊肟酯杂质B 中文同义词: 头孢泊肟酯杂质B;头孢泊肟酯EP杂质B;头孢泊肟酯杂质B对照品;原料药头孢泊肟酯 杂质B;头孢泊肟酯杂质B(EP);头孢泊肟酯PROXETIL EP杂质B;头孢泊肟酯EP杂质B(非对映异构体混合物);头孢泊肟酯杂质B (1RS)-1-[[(1-甲基乙氧基)羰基]氧基]乙基(6R,7R)-7-[[(2Z)-2-(2-氨基噻唑-4-基)-2-(甲氧亚氨基)乙酰基]氨基]-3-甲基-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-羧酸酯(头孢泊肟酯的ADCA-类似物);头孢泊肟酯杂质B （1RS）-1-[[（1-甲基乙氧基）羰基]氧基]乙基（6R，7R）-7-[[（2Z）-2-（2-氨基噻唑-4-基）-2-（甲氧亚氨基）乙酰基]氨基]-3-甲基-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-羧酸酯（头孢泊肟酯的ADCA-类似物） 分子式: C20H25N5O8S2 分子量: 527.57 密度 : 1.59±0.1 g/cm3(Predicted) 酸度系数(pKa): 8.22±0.60(Predicted)