[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule appears as a colorless liquid. Insoluble in water and denser than water. May be toxic by inhalation, ingestion or skin absorption. Used to make pharmaceuticals and other chemicals."}, {"from": "gpt", "value": "[C][Branch1][Ring1][C][Cl][C][Br]"}]