[{"from": "human", "value": "Provide a description of this molecule. [C][=Branch1][=Branch1][=C][Branch1][C][F][Br][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule appears as a colorless gas (boiling point -2 to 0 \u00b0C) shipped in cylinders or, if polymerized, a liquid. Heating the containers of gas may cause them to rupture violently and rocket. Polymeric bromotrifluoroethylene is a clear oily liquid of widely variable viscosity and density."}]