[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule appears as a water-white liquid with an odor like moth balls. Insoluble in water and denser than water. Toxic by inhalation. Liquid contact may irritate skin and eyes."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][=Branch2][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][Cl][C][Branch1][C][F][Branch1][C][F][F]"}]