[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][#Branch1][C@H1][Branch1][Ring1][C][=O][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an aldehydic acid anion resulting from the deprotonation of the carboxy group of (R)-3-hydroxy-4-oxobutanoic acid. It is an oxo monocarboxylic acid anion and an aldehydic acid anion. It is a conjugate base of a (R)-3-hydroxy-4-oxobutanoic acid."}]