SMILES: C1CN[C@@H](CN1)C(=O)[O-]
Description: The molecule is an alpha-amino-acid anion that is the conjugate base of piperazine-2-carboxylic acid. It is a conjugate base of a (S)-piperazine-2-carboxylic acid and a (S)-piperazine-2-carboxylic acid zwitterion. It is an enantiomer of a (R)-piperazine-2-carboxylate.