[{"from": "human", "value": "Could you provide a description of this molecule? [C][/C][=C][/C][=C]"}, {"from": "gpt", "value": "The molecule appears as a clear colorless liquid with an acrid odor. A dangerous fire risk. Vapors are irritating to the eyes and respiratory system. Subject to polymerization if heated or contaminated. If the polymerization takes place inside a container, the container may violently rupture. Insoluble in water. Used to make intermediates and polymers."}]