[{"from": "human", "value": "Generate a molecule based on the given description. The molecule appears as a liquid. Insoluble in water and slightly less dense than water. Hence floats on water. Poisonous by ingestion and moderately toxic by inhalation and skin contact. Irritating to skin and eyes."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C][C][=C]"}]