cephalosporin Cefroxadine 365.105 365.406 C16H19N3O5S CAS:51762-05-1 CGP 9000 CGP-9000 CHEBI:31379 COC1=C(N2[C@H](SC1)[C@H](NC(=O)[C@H](N)C1=CCC=CC1)C2=O)C(O)=O Cefroxadine Drug_Central:557 InChI=1S/C16H19N3O5S/c1-24-9-7-25-15-11(14(21)19(15)12(9)16(22)23)18-13(20)10(17)8-5-3-2-4-6-8/h2-3,6,10-11,15H,4-5,7,17H2,1H3,(H,18,20)(H,22,23)/t10-,11-,15-/m1/s1 KEGG:C12979 KEGG:D01528 RDMOROXKXONCAL-UEKVPHQBSA-N cefroxadin chebi_ontology