carbapenems PS-5 298.099 298.35800 Antibiotic PS 5 C13H18N2O4S CC[C@@H]1[C@H]2CC(SCCNC(C)=O)=C(N2C1=O)C(O)=O CHEBI:81037 InChI=1S/C13H18N2O4S/c1-3-8-9-6-10(20-5-4-14-7(2)16)11(13(18)19)15(9)12(8)17/h8-9H,3-6H2,1-2H3,(H,14,16)(H,18,19)/t8-,9-/m1/s1 KEGG:C17370 MHSNTZYKSLYGOM-RKDXNWHRSA-N chebi_ontology