[{"from": "human", "value": "Describe this molecule. [C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][O]"}, {"from": "gpt", "value": "The molecule is a Central Nervous System Depressant. The physiologic effect of 4-hydroxybutanoic acid is by means of Central Nervous System Depression, and Decreased Central Nervous System Organized Electrical Activity."}]