英文别名Cefprozil Impurity C; Cefprozil EP impurity C; Cefadroxil EP Impurity E; (E)-3-(aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione; (3E)-3-(aminomethylene)-6-(4-hydroxyphenyl)piperazine-2,5-dione; Hydroxyphenyl Diketopiperazine; 3-(Aminomethylene)-6-(4-hydroxyphenyl)-2,5-piperazinedione; Cefprozil Monohydrate EP Impurity C 
