Cefuroxime Axetil EP Impurity A

Chemical Name: 1-(Acetyloxy)ethyl (6R,7R)-3-[(carbamoyloxy)methyl]-7-[[(Z)-2-(furan-2-yl)-2-(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylate (as per EP); (1RS,6R,7R)-1-Acetoxyethyl 3-[(carbamoyloxy)methyl]-7-[(Z)-2-(furan-2-yl)-2-(methoxyimino)acetamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylate (as per USP)