[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an ether that is dimethyl ether in which one of the hydrogens attached to each of the methyl group has replaced by a chlorine. It has a role as a carcinogenic agent and an alkylating agent. It is an ether and an organochlorine compound."}, {"from": "gpt", "value": "[C][Branch1][Ring2][O][C][Cl][Cl]"}]