SMILES: C1C[C@H](N2[C@@H]1CC2=O)C(=O)[O-]
Description: The molecule is a monocarboxylic acid anion that is the conjugate base of (3S,5S)-carbapenam-3-carboxylic acid, obtained by deprotonation of the carboxy group. It is a conjugate base of a (3S,5S)-carbapenam-3-carboxylic acid.