Cefotaxime (sodium) (Standard) is the analytical standard of Cefotaxime (sodium). This product is intended for research and analytical applications. Cefotaxime (Cefotaxim) sodium, a beta-lactamase stable cephalosporin and a third-generation cephalosporin antibiotic, possesses broad-spectrum antibiotic activity against numerous Gram-positive and Gram-negative bacteria[1][2][3][4][5].