[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a colorless odorless gas. It is shipped as a liquefied gas under its own vapor pressure. It is noncombustible. It can asphyxiate by the displacement of air. Contact with the liquid can cause frostbite. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket."}, {"from": "gpt", "value": "[C][Branch1][C][F][Branch1][C][F][Branch1][C][F][Cl]"}]