1.0 2016-05-22 03:38:41 UTC 2026-08-19 15:41:24 UTC Cephalexin SmallMolecule Cephalexin is an organic compound with the chemical formula C16H17N3O4S and an average molecular weight of 347.39 g/mol. Cephalexin belongs to the beta lactams, a subclass of lactams within the organic compounds. It is categorized under the superclass of organoheterocyclic compounds. The compound is found in or released from 36 recorded sources. Within healthcare, pharmaceuticals, and veterinary products, it is identified as an antibiotic and a beta-lactam antibacterial. Other sources include drinking water and water supply, as well as food, food processing, and cookware, specifically in the processing of meats, the preparation of vinegar, the preparation of wort, and fermentation processes for beer. It is also associated with building and construction materials such as ceilings and sunshades awnings or outside screens. Additionally, it is found in household cleaning and consumer products, including tobacco pipes, pipe accessories, cigar cigarettes, other smoking requisites, and non electric simulated smoking devices. It is released from electrical and electronic equipment, including antennas, amplifiers, coils, auxiliary devices, adjustable resistors, and 15 more. Recorded exposure routes for this compound include oral, inhalation, and dental. Cephalexin interacts with five recorded protein targets. It acts as an inhibitor of serine-type D-Ala-D-Ala carboxypeptidase (pbp3) and targets penicillin-binding protein 1A (pbpA), penicillin-binding protein 1b (pbp1b), and penicillin-binding protein 2a (pbp2a), along with one other protein. Cefalexin C16H17N3O4S 347.389 347.093976737 (6R,7R)-7-[(2R)-2-amino-2-phenylacetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid cephalexin 15686-71-2 [H][C@]12SCC(C)=C(N1C(=O)[C@H]2NC(=O)[C@H](N)C1=CC=CC=C1)C(O)=O InChI=1S/C16H17N3O4S/c1-8-7-24-15-11(14(21)19(15)12(8)16(22)23)18-13(20)10(17)9-5-3-2-4-6-9/h2-6,10-11,15H,7,17H2,1H3,(H,18,20)(H,22,23)/t10-,11-,15-/m1/s1 ZAIPMKNFIOOWCQ-UEKVPHQBSA-N Organic compounds Organoheterocyclic compounds Lactams Beta lactams Cephalosporins 1,3-thiazines Alpha amino acid amides Amino acids Aralkylamines Azacyclic compounds Azetidines Carbonyl compounds Carboxylic acids Dialkylthioethers Hydrocarbon derivatives Monoalkylamines Monocarboxylic acids and derivatives N-acyl-alpha amino acids and derivatives Organic oxides Organopnictogen compounds Phenylacetamides Secondary carboxylic acid amides Tertiary carboxylic acid amides Thiohemiaminal derivatives Alpha-amino acid amide Alpha-amino acid or derivatives Amine Amino acid Amino acid or derivatives Aralkylamine Aromatic heteropolycyclic compound Azacycle Azetidine Benzenoid Carbonyl group Carboxamide group Carboxylic acid Carboxylic acid derivative Cephalosporin Dialkylthioether Hemithioaminal Hydrocarbon derivative Meta-thiazine Monocarboxylic acid or derivatives Monocyclic benzene moiety N-acyl-alpha amino acid or derivatives Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Phenylacetamide Primary aliphatic amine Primary amine Secondary carboxylic acid amide Tertiary carboxylic acid amide Thioether Aromatic heteropolycyclic compounds cephalosporin Detected and Not Quantified Cephalexin Drug Metabolism Action Pathway SMP0143016 Cephalexin Predicted Metabolism Pathway SMP0174648 logp -2.1 logp 0.55 ALOGPS logs -3.07 ALOGPS solubility 2.97e-01 g/l ALOGPS logp -2.1 ChemAxon pka_strongest_acidic 3.45 ChemAxon pka_strongest_basic 7.44 ChemAxon iupac (6R,7R)-7-[(2R)-2-amino-2-phenylacetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ChemAxon average_mass 347.389 ChemAxon mono_mass 347.093976737 ChemAxon smiles [H][C@]12SCC(C)=C(N1C(=O)[C@H]2NC(=O)[C@H](N)C1=CC=CC=C1)C(O)=O ChemAxon formula C16H17N3O4S ChemAxon inchi InChI=1S/C16H17N3O4S/c1-8-7-24-15-11(14(21)19(15)12(8)16(22)23)18-13(20)10(17)9-5-3-2-4-6-9/h2-6,10-11,15H,7,17H2,1H3,(H,18,20)(H,22,23)/t10-,11-,15-/m1/s1 ChemAxon inchikey ZAIPMKNFIOOWCQ-UEKVPHQBSA-N ChemAxon polar_surface_area 112.73 ChemAxon refractivity 88.97 ChemAxon polarizability 32.52 ChemAxon rotatable_bond_count 4 ChemAxon acceptor_count 5 ChemAxon donor_count 3 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f7224715e60> DB00567 27447 25541 BE0004643 BE0004644 BE0004335 BE0004290 BE0003624