QC160802

头孢噻吩杂质 B；头孢噻吩钠 EP 杂质 A

Cephalothin Impurity B;Cefalotin sodium EP Impurity A

别名：(6R,7R)-3-methyl-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid