[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=Branch1][C][=O][C][=Branch1][C][=O][C][=C][Ring1][Branch2][O-1]"}, {"from": "gpt", "value": "The molecule is an organic anion obtained by deprotonation of the hydroxy group of 2-hydroxy-5-methylquinone. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a 2-hydroxy-5-methylquinone."}]