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Cephalexin
C16H17N3O4S·H2O 365.40
C16H17N3O4S 347.40
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[(aminophenylacetyl)amino]-3-methyl-8-oxo-, monohydrate, [6R-[6α,7β (R*)]]-;
(6R,7R)-7-[(R)-2-Amino-2-phenylacetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate
[23325-78-2] Anhydrous [15686-71-2]

DEFINITION

Cephalexin has a potency of NLT 950 µg/mg and NMT 1030 µg/mg of C16H17N3O4S, calculated on the anhydrous basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Cephalexin RS
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