SMILES: C[C@@H]1[C@@H]2[C@H](C(=O)N2C(=C1S[C@H]3C[C@H]([NH2+]C3)C(=O)NC4=CC=CC(=C4)C(=O)[O-])C(=O)[O-])[C@@H](C)O
Description: The molecule is the mono-anion resulting from the removal of a proton from one of the carboxyic acid groups of ertapenem. It is a conjugate base of an ertapenem.