7-ZACA ; (6R,7R)-7-Amino-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS # 30246-33-4 ;

(6R,7R)-7-[(2,2-Dimethylpropanoyl)amino]-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid sodium salt ;

(6R,7R)-3-Methyl-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo [4.2.0]oct-2-ene-2-carboxylic acid sodium salt ;

(6R,7R)-3-[(Acetyloxy)methyl]-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid sodium salt ;

5-Methyl-1,3,4-thiadiazol-2-thiol ; CAS # 29490-19-5 ;

Cefazolin Lactone Impurity ; (5aR,6R)-6-[(1H-Tetrazol-1-ylacetyl)amino]-5a,6-dihydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione ;

Cefoperazone EP Impurity E ; 7-Aminocephalosporanic Acid ; (6R,7R)-3-[(Acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ; CAS # 957-68-6 ;

Hydrolysed Cefazoloic Acid ; (6R,7R)-3-[[(5-Methyl-1,3,4-thiadiazol-2-yl)sulphanyl]methyl]-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamide ;

Cefazolinamide ; (6R,7R)-3-[[(5-Methyl-1,3,4-thiadiazol-2-yl)sulphanyl]methyl]-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamide ; CAS # 1322626-65-2 ;

(6R,7S)-3-[[(5-Methyl-1,3,4-thiadiazol-2-yl)sulphanyl]methyl]-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ;

Cefazolin Sodium ; CAS # 27164-46-1 ;