Cefoperazone Sodium - Impurity E

957-68-6

(6R,7R)-3-[(Acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(acetyloxy)methyl]-7-amino-8-oxo-,(6R-trans)-; 7-Aminocephalosporanic Acid; 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-amino-3-(hydroxymethyl)-8-oxo-, acetate (ester); (7R)-7-Aminocephalosporanic acid; 3-(Acetoxymethyl)-7-aminocephem-4-carboxylic acid; 3-Acetoxymethyl-7-aminoceph-3-em-4-carboxylic acid; 3-Acetoxymethyl-7β-aminoceph-3-em-4-carboxylic acid; 7-Amino-3-acetoxymethyl-3-cephem-4-carboxylic acid; 7-Amino-3-acetoxymethyl-Δ3-cephem-4-carboxylic acid; 7-Aminocephalosporanic acid; 7β-Amino-3-acetoxymethylcephemcarboxylic acid; 7β-Aminocephalosporanic acid;