lenampicillin 461.126 461.490 C(OCC=1OC(OC1C)=O)(=O)[C@@H]2N3[C@](SC2(C)C)([C@@H](C3=O)NC([C@H](N)C4=CC=CC=C4)=O)[H] C21H23N3O7S CAS:86273-18-9 CHEBI:135748 Drug_Central:1553 InChI=1S/C21H23N3O7S/c1-10-12(31-20(28)30-10)9-29-19(27)15-21(2,3)32-18-14(17(26)24(15)18)23-16(25)13(22)11-7-5-4-6-8-11/h4-8,13-15,18H,9,22H2,1-3H3,(H,23,25)/t13-,14-,15+,18-/m1/s1 KBT 1585 KBT-1585 ZKUKMWMSYCIYRD-ZXFNITATSA-N chebi_ontology lenampicillin HCl lenampicillin hydrochloride valacillin penicillin