1,1,1,2-Tetrafluoroethane Other names: 1,1,1-Trifluoro-2-fluoroethane Norflurane F134a R-134a Hydrofluorocarbon 134 a Freon 134a Formula: C2H2F4 CAS: 811-97-2 Weight: 102,03 g/mol Boiling point: -26,5 C Melting point: -101 C Density: N/A