cephapirin benzathine and its Impurities

Cefapirin, commonly marketed under the trade name Cefadyl, is a first-generation cephalosporin antibiotic that is available in injectable formulations. It is used as an antifungal in animals infected with Candida albicans. Reference standards of Cephapirin Benzathine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.