头孢丙烯EP杂质B 货号:C065006 英文名:Cefprozil EP Impurity B 同义词:(6R,7R)-7-((R)-2-amino-2-(4-hydroxyphenyl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid CAS号:N/A 分子式:C16H17N3O5S 分子量:363.39 询价订购