[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][=Branch1][C][Branch1][C][Cl][Cl][C][Branch1][C][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a chloroalkane that is propane substituted by chloro groups at positions 1,1,3 and 3, respectively."}]