HomeSearch by AntimicrobialCefalexin (Keflex)
Antimicrobial Name: Cefalexin (Keflex)
CAS Number: 15686-71-2
Type of Antibiotic: Cephalosporins->First Generation
Origin: Chemical/Synthetic
Functional Category: Antibiotic
Molecular Weight: 347.39 g/mol
Chemical Formula:



Cefalexin (Keflex) is a first-generation cephalosporin antibiotic introduced in 1967 by Eli Lilly and Company. It is an orally administered agent with a similar antimicrobial spectrum to the intravenous agents cefalotin and cefazolin. It was first marketed as Keflex (Lilly), and is now sold under several other trade names as well.