[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an organic anion that is the conjugate base of atromentin, obtained from the deprotonation of one of the hydroxy groups of the 1,4-benzoquinone moiety. It is the major species at pH 7.3. It is a conjugate base of an atromentin."}, {"from": "gpt", "value": "[C][=C][C][=Branch2][Ring2][=Branch1][=C][C][=C][Ring1][=Branch1][C][=C][Branch2][Ring1][O][C][=Branch1][C][=O][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][Ring1][#Branch1][=O][O-1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][O]"}]