[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C]"}, {"from": "gpt", "value": "The molecule appears as a water-white to straw colored liquid. Slightly less dense than water and insoluble in water. Vapors may be toxic. Used in making rubber."}]