cefetamet 397.051 397.432 C(O)(=O)C=1N2[C@@]([C@@H](C2=O)NC(/C(=N\OC)/C=3N=C(SC3)N)=O)(SCC1C)[H] C14H15N5O5S2 CAS:65052-63-3 CHEBI:135629 Drug_Central:3074 InChI=1S/C14H15N5O5S2/c1-5-3-25-12-8(11(21)19(12)9(5)13(22)23)17-10(20)7(18-24-2)6-4-26-14(15)16-6/h4,8,12H,3H2,1-2H3,(H2,15,16)(H,17,20)(H,22,23)/b18-7-/t8-,12-/m1/s1 MQLRYUCJDNBWMV-GHXIOONMSA-N chebi_ontology deacetoxycefotaxime cephalosporin