[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a straight-chain 3-hydroxy monocarboxylic acid comprising a butyric acid core with a single hydroxy substituent in the 3- position; a ketone body whose levels are raised during ketosis, used as an energy source by the brain during fasting in humans. Also used to synthesise biodegradable plastics. It has a role as a human metabolite. It is a 3-hydroxy monocarboxylic acid, a hydroxybutyric acid and an (omega-1)-hydroxy fatty acid. It is functionally related to a butyric acid. It is a conjugate acid of a 3-hydroxybutyrate."}]