[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][Branch1][C][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a member of the class of chloroethenes that is ethene in which both of the hydrogens attached to one of the carbons are replaced by chlorines. It has a role as a mutagen, a carcinogenic agent and a mouse metabolite."}]