Ceftolozane Sulfate and its Impurities

Ceftolozane Sulfate is a cephalosporin antibiotic used to treat complicated intra-abdominal infections in combination with metronidazole, complicated urinary tract infections, and hospital-acquired pneumonia. Reference standards of Ceftolozane Sulfate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.