[{"from": "human", "value": "Describe this molecule. [C][C@H1][C@][C][C][Branch2][Ring1][=Branch2][C][C@H1][Ring1][Branch1][C][=C][Branch1][N][C@@H1][Ring1][Branch2][C][C][=Branch1][C][=O][O][Ring1][=N][C][=Branch1][C][=O][O-1][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid anion that is the conjugate base of neopentalenolactone D, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a neopentalenolactone D."}]