[{"from": "human", "value": "Please give me some details about this molecule. [C][/C][=Branch1][Ring1][=C][/O-1][/C][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 6-oxo monocarboxylic acid anion resulting from the deprotonation of the carboxy group of (2Z,4E)-2-hydroxy-5-methyl-6-oxohexa-2,4-dienoic acid. The major species at pH 7.3. It is a conjugate base of a (2Z,4E)-2-hydroxy-5-methyl-6-oxohexa-2,4-dienoic acid."}]