英文别名(6R,7R)-7-(2-(1h-tetrazol-1-yl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R)-3-methyl-8-oxo-7t-(2-tetrazol-1-yl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid; Cefazolin Impurity C; 7-[1-(1H)-Tetrazolylacetamido]-desacetoxycephalosporansaeure; Cefazolin EP Impurity C 
