[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][=Branch1][C][Branch1][C][Cl][Cl][Branch1][C][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a member of the class of chloroethanes that is ethane substituted by chloro groups at positions 1, 1, 2 and 2."}]