[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=Branch1][C][=O][N][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid anion resulting from the deprotonation of 6-hydroxynicotinic acid; the major species at pH 7.3. It is a conjugate base of a 6-hydroxynicotinic acid."}]