[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch2][Ring2][Ring1][=C][Branch2][Ring1][=C][C][=C][Ring1][=Branch1][C][=C][C][=Branch1][C][=O][C][=C][Branch1][Ring2][O][Ring1][#Branch1][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][#Branch1][O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is major species at pH 7.3 It is a conjugate base of a 2-(3,4-dihydroxyphenyl)-7,8-dihydroxy-1-benzopyran-4-one."}]