[{"from": "human", "value": "Provide a description of this molecule. [C][=Branch1][Ring1][=C][/O][\\C][=Branch1][O][=C][/C][=Branch1][C][=O][C][=Branch1][C][=O][O][\\C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a carboxy-2-hydroxymuconate semialdehyde having the carboxy group at the 4-position and the aldehyde functijon at the 6-position. It is a conjugate acid of a 4-carboxy-2-hydroxy-cis,cis-muconate 6-semialdehyde(2-)."}]