CefazolinIMpurityC;(6R,7R)-3-methyl-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid;CefazolinEPImpurityC;(6R,7R)-7-(2-(1H-tetrazol-1-yl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid;CefazolinImpurity3(CefazolinEPImpurityC)(CefazolinUSPRCH);CefazolinUSPImpurityH;CefazolinEPImpurityC(CefazolinUSPRelatedCompoundH);(6R,trans)-7-(2-(1H-Tetrazol-1-yl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid
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