[{"from": "human", "value": "Generate a molecule based on the given description. The molecule appears as a colorless, fuming liquid with a pungent odor. Soluble in benzene and ether (Merck 11th ed., 1989). Vapors are irritating to the eyes and mucous membranes. Vapor causes pulmonary edema. Corrosive to metals and skin."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][I]"}]