[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=Branch2][=Branch1][C][=C][C][=Branch2][Branch1][=Branch2][=C][C][=C][Branch1][P][C][=Branch1][C][=O][C][=C][Branch1][Branch2][C][Ring1][#Branch1][=C][Ring1][O][O-1][O][C][=C][C][=C][C][=Branch1][=N][=C][Branch1][=Branch2][C][=C][Branch1][Ring2][O][Ring1][=Branch1][C][O][C][=Branch1][=N][=C][Ring1][N][C][=Branch1][=Branch1][=C][C][Ring1][S][=O][O][O-1][O][Ring2][Ring2][Ring2][O]"}, {"from": "gpt", "value": "The molecule is a phenolate anion that is the conjugate base of ustilaginoidin A, obtained by deprotonation of the two hydroxy groups at positions 5 and 5'. It is the major microspecies at pH 7.3. It is a conjugate base of an ustilaginoidin A."}]