[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=C][Branch1][N][C][=Branch1][Branch2][=C][Branch1][Ring2][O][Ring1][Branch1][C][O-1][O]"}, {"from": "gpt", "value": "The molecule is an organic anion that is the conjugate base of 4-hydroxy-2,5-dimethyl-3-furanone, obtained by deprotonation of the hydroxy group with concomitant keto/enol-type tautomerisation. It is thought to be a major microspecies at pH 7.3. It is a conjugate base of a 4-hydroxy-2,5-dimethylfuran-3-one."}]