[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][C][C][C][O][C][=Branch1][C][=O][C][=C]"}, {"from": "gpt", "value": "The molecule appears as a clear colorless liquid with an acrid odor. Flash point 86 \u00b0F. Less dense than water. Vapors irritate eyes and respiratory system. May polymerize exothermically if heated or contaminated. If polymerization takes place inside a container, the container may rupture violently."}]