[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=C][C][=Branch1][C][=O][Cl]"}, {"from": "gpt", "value": "The molecule appears as a liquid of density 1.07 g / cm3, boiling point 95-96 \u00b0C, and flash point 55 \u00b0F. Highly toxic. Supplied in technical grades of varying purity."}]