[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][Branch2][Ring1][S][C][C][Ring1][Branch1][C][Branch2][Ring1][#Branch1][C][=Branch2][Ring1][C][=C][Branch1][=C][C][Ring1][=Branch1][Branch1][Branch2][C][Ring1][Branch1][Branch1][C][Cl][Cl][Cl][Cl][Cl][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a manufactured cyclodiene organochlorine insecticide. As it is a persistant organic pollutant, heptachlor use is banned or limited in most areas. It is one ingredient of cigarette. (L118, L119)"}]