[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=Branch1][O][=N][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a pyridinedicarboxylic acid carrying carboxy groups at positions 2 and 5. It is a conjugate acid of an isocinchomeronate(1-)."}]