Cephalosporin C Na salt is primarily used in the pharmaceutical industry as a key intermediate in the production of semi-synthetic cephalosporin antibiotics. These antibiotics are widely prescribed for treating various bacterial infections, including respiratory tract infections, skin infections, urinary tract infections, and more. Its role as a precursor allows for the synthesis of more potent and targeted antibiotics, enhancing their efficacy against resistant bacterial strains. Additionally, it is utilized in research and development to explore new derivatives with improved pharmacological properties.