[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a haloalkane that is bromoethane substituted by chlorine at position 2. It has a role as a mutagen. It is a haloalkane, an organobromine compound and an organochlorine compound."}, {"from": "gpt", "value": "[C][Branch1][Ring1][C][Br][Cl]"}]