7B-Amino-7a-methoxy-3-(1-methyl-5-tetrazolylthio)methyl-3-cephem-4-carboxylic Acid Diphenylmethyl Ester is a 7a-methoxycephalosporin derivative used as an intermediate in the preparation of Cefmetazole and other semi-synthetic antibiotics.Form:Pale Yellow SolidMelting Point:118-121°C (dec.)Solubility:Chloroform, Methanol