[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=Branch1][#Branch1][=C][\\C][=Branch1][C][=O][O][\\C][=Branch1][C][=O][/C][=C][/O-1]"}, {"from": "gpt", "value": "The molecule is an aldehydic acid anion resulting from the deprotonation of the carboxy group of (2Z,4E)-4-hydroxymuconic semialdehyde. It is a 6-oxo monocarboxylic acid anion and an aldehydic acid anion. It is a conjugate base of a (2Z,4E)-4-hydroxymuconic semialdehyde."}]