头孢丙烯EP杂质C 货号:C065007 英文名:Cefprozil EP Impurity C 同义词:(R)-3-(aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione compound with (S)-3-(aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione (1:1) CAS号:N/A 分子式:C11H11N3O3 分子量:233.22 询价订购