[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][/C][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dioxo monocarboxylic acid anion that is the conjugate base of 2,6-dioxo-6-phenylhexa-3-enoic acid, arising from deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate acid of a 2,6-dioxo-6-phenylhexa-3-enoic acid. It is a tautomer of a 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate."}]