[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][C][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][#Branch2][=O][C][=C][C][=Branch1][Branch1][=C][Ring1][Branch2][O-1][O]"}, {"from": "gpt", "value": "The molecule is a phenolate anion that is the conjugate base of nataloe-emodin, obtained by deprotonation of the phenolic hydroxy group at position 2. Major species at pH 7.3. It is a conjugate base of a nataloe-emodin."}]