(6R,7R)-7-(2-(1H-tetrazol-1-yl)acetamido)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid-13C2-15N; (6R,7R)-3-[[(5-Methyl-1,3,4-thiadiazol-2-yl)thio]methyl]-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid-13C2,15N Sodium Salt; Atirin-13C2,15N; Azolin-13C2,15N; Biazolina-13C2,15N; Bor-Cefazol-13C2,15N; Cefacidal-13C2,15N; Cefamedin-13C2,15N; Cefazil-13C2,15N; Cefazina-13C2,15N; Cefazoliin-13C2,15N; Sodium Cephazolin-13C2,15N; Totacef-13C2,15N; Zolicef-13C2,15N; SKF-41558-13C2,15N;
