[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a brown to white solid. If the large pieces are broken up or powdered, it is toxic by inhalation and skin absorption. It is insoluble in water and noncombustible. It is used as an insecticide."}, {"from": "gpt", "value": "[C][C@@H1][C][=C][C@H1][Ring1][Branch1][C@H1][C@@H1][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]"}]