[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule appears as a colorless liquid. Insoluble in water and denser than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. Used to make other chemicals."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][C][C][C][Branch1][Branch2][C][C][C][C][C][Ring1][=Branch1][O][C][=Branch1][C][=O][Cl]"}]