[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule appears as a colorless liquid. Slightly denser than water and insoluble in water. May be moderately toxic by ingestion, inhalation or skin absorption. Severely irritates skin, eyes and mucous membranes."}, {"from": "gpt", "value": "[C][C][O][C][Cl]"}]