[{"from": "human", "value": "Please give me some details about this molecule. [C][=Branch1][=N][=C][/C][=Branch1][C][=O][/C][=C][/C][=Branch1][C][=O][O][\\C][=C][Branch1][=Branch1][\\C][=Branch1][C][=O][O][/O]"}, {"from": "gpt", "value": "The molecule is a nonatrienedicarboxylic acid. It is a conjugate acid of a 2-hydroxy-6-oxonona-2,4,7-trienedioate."}]