左亚叶酸钙EP杂质B 货号:L028006 英文名:Calcium Levofolinate EP Impurity B(Mixture of Diastereomers) 同义词:Folinic Acid EP Impurity B (Mixture of Diastereomers);(2S)-2-(4-(N-((2-amino-5-formyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl)methyl)formamido)benzamido)pentanedioic acid CAS号:98814-60-9 分子式:C21H23N7O8 分子量:501.45 询价订购