头孢丙烯杂质3 货号:C065003 英文名:Cefprozil Impurity 3 同义词:7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid CAS号:N/A 分子式:C8H10N2O3S 分子量:214.24 询价订购