[{"from": "human", "value": "Describe this molecule. [C][=Branch1][C][=O][Branch1][=Branch2][C][Branch1][C][Cl][Branch1][C][Cl][Cl][O]"}, {"from": "gpt", "value": "The molecule is an analogue of acetic acid in which the three hydrogen atoms of the methyl group have all been replaced by chlorine atoms."}]