[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a dioxo monocarboxylic acid anion that is the conjugate base of 1,4-naphthoquinone-2-carboxylic acid, obtained by the deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 1,4-naphthoquinone-2-carboxylic acid."}, {"from": "gpt", "value": "[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][Branch2][=O][C][=Branch1][C][=O][O-1]"}]