Cefotaxime sodium (Standard) is the standard substance of Cefotaxime sodium, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Cefotaxime is a third-generation cephalosporin antibiotic. Like other third-generation cephalosporins, it has broad spectrum activity against Gram positive and Gram negative bacteria. In most cases, it is considered to be equivalent to ceftriaxone in terms of safety and efficacy. Cefotaxime sodium (Cefotaxim sodium salt) is marketed under various trade names including Claforan (Sanofi-Aventis).