Freon 114 B2 Other names: 1,2-Dibromo-1,1,2,2-tetrafluoroethane Halon 2402 F114B2 1,2-Dibromotetrafluoroethane Formula: C2Br2F4 CAS: 124-73-2 Weight: 259,82 g/mol Boiling point: 47,3 °C Melting point: -110,5 °C Density: 2,175 g/cm3