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Also known as Ceclor, Panacef, Alfatil, CCL, Céfeaclor, Cefaclor anhydrous, Cephaclor, Cefacloro

Cefaclor, sold under the trade name Ceclor among others, is a second-generation cephalosporin antibiotic used to treat certain bacterial infections such as pneumonia and infections of the ear, lung, skin, throat, and urinary tract. It is also available from other manufacturers as a generic.

Chemical data

Formula: C15H14ClN3O4S
Molecular weight: 367.8 g/mol
IUPAC name: (6R,7R)-7-[[(2R)-2-azaniumyl-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
SMILES: C1C(=C(N2[C@H](S1)[C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3)[NH3+])C(=O)[O-])Cl
InChIKey: QYIYFLOTGYLRGG-GPCCPHFNSA-N
XLogP: -1.1
Polar surface area: 142 Å²
H-bond donors: 2
H-bond acceptors: 5
Formal charge: 0