7-Amino-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic Acid is a cephalosporin derivative with antibacterial activity. 7-Amino-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic Acid is an intermediate in the preparation of Cefmetazole and other semi-synthetic antibiotics.Form:Off-White SolidMelting Point:201-204°C (dec.)Solubility:Aqueous Acid, Aqueous Base