[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][Branch1][=Branch2][N][C][=Branch1][C][=O][C][Ring1][#Branch1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid anion that is the conjugate base of 6-ketopiperidine-2-carboxylic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 6-ketopiperidine-2-carboxylic acid."}]