匹美西林EP杂质C 货号:P105003 英文名:Pivmecillinam EP Impurity C 同义词:(4S)-(pivaloyloxy)methyl 2-(((azepan-1-ylmethylene)amino)methyl)-5,5-dimethylthiazolidine-4-carboxylate CAS号:N/A 分子式:C20H35N3O4S 分子量:413.57 询价订购