[{"from": "human", "value": "What can you tell me about this molecule? [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]"}, {"from": "gpt", "value": "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."}]