carbapenems Thienamycin 272.083 272.322 C11H16N2O4S CAS:59995-64-1 CHEBI:9542 C[C@@H](O)[C@@H]1[C@H]2CC(SCCN)=C(N2C1=O)C(O)=O InChI=1S/C11H16N2O4S/c1-5(14)8-6-4-7(18-3-2-12)9(11(16)17)13(6)10(8)15/h5-6,8,14H,2-4,12H2,1H3,(H,16,17)/t5-,6-,8-/m1/s1 KEGG:C06664 KNApSAcK:C00018212 Thienamycin WKDDRNSBRWANNC-ATRFCDNQSA-N chebi_ontology