[{"from": "human", "value": "Generate a molecule based on the given description. The molecule appears as a clear, colorless liquid with a pungent odor. Less dense than water. Vapors heavier than air. May irritate skin and eyes. Used to make other chemicals."}, {"from": "gpt", "value": "[C][C][O][C][Branch1][Ring2][O][C][C][O][C][C]"}]