[{"from": "human", "value": "Please give me some details about this molecule. [C][=C][C][Br]"}, {"from": "gpt", "value": "The molecule appears as a clear colorless to light yellow liquid with an irritating unpleasant odor. Flash point 30 \u00b0F. Irritates eyes, skin, and respiratory system. Toxic by skin absorption. Denser than water and slightly soluble in water."}]