[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][\\C][=C][/C][=C][\\C][=C][\\-Ring1][Branch2]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid. May irritate skin and eyes. Less dense than water and insoluble in water. Vapors heavier than air. Used to make rubber."}]