Cefazolin

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Cefazolin

C₁₄H₁₄N₈O₄S₃ 454.51
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[[(5-methyl-1,3,4-thiadiazol-2-yl)thio]methyl]-8-oxo-7-[[1H-tetrazol-1-yl)acetyl]amino]-(6R-trans);
(6R,7R)-3-[[(5-Methyl-1,3,4-thiadiazol-2-yl)thio]methyl]-8-oxo-7-[2-(1H-tetrazol-1-yl)acetamido]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid [25953-19-9]

DEFINITION

Cefazolin contains NLT 95.0% and NMT 103.0% of cefazolin (C₁₄H₁₄N₈O₄S₃), calculated on the anhydrous basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Cefazolin RS

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