The sodium salt of cephalosporin G is made of chemical decomposition, the production of the first V, cefoperazone Semisynthesis The sodium salt of cephalosporin G is made of chemical decomposition, the production of the first V, cefoperazone Semisynthesis important intermediate products. Cephalosporin bulk drugs are broad-spectrum antimicrobial resistance, enzymes, and low toxicity

7 - Aminocephalosporanic acid