is conjugate base of carfecillin penicillinate anion carfecillin(1-) (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(3-oxo-3-phenoxy-2-phenylpropanoyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 2,2-dimethyl-6beta-[(3-oxo-3-phenoxy-2-phenylpropanoyl)amino]penam-3alpha-carboxylate 453.112 453.48872 Beilstein:5406126 C23H21N2O6S CHEBI:51906 InChI=1S/C23H22N2O6S/c1-23(2)17(21(28)29)25-19(27)16(20(25)32-23)24-18(26)15(13-9-5-3-6-10-13)22(30)31-14-11-7-4-8-12-14/h3-12,15-17,20H,1-2H3,(H,24,26)(H,28,29)/p-1/t15?,16-,17+,20-/m1/s1 NZDASSHFKWDBBU-KVMCETHSSA-M [H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)C(C(=O)Oc1ccccc1)c1ccccc1)C([O-])=O chebi_ontology