Cefiderocol and its Impurities

Cefiderocol is brand name Fetroja. it is a novel cephalosporin antibiotic with a unique mechanism of action. It is classified as a siderophore cephalosporin, meaning it uses the bacterial iron transport system to enter cells. Reference standards of Cefiderocol API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.