QC060504

头孢拉定 EP 杂质 D

Cefradine EP Impurity D

别名：(6R,7R)-7-((R)-2-amino-2-(cyclohexa-1,4-dien-1-yl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxide (isomer 2)