1,1,1,2-Tetrafluoro-2-chloroethane 1,1,1,2-Tetrafluorochloroethane 1-Chloro-1,2,2,2-tetrafluoroethane 1-Chloro-1,2,2,2-tetrafluoroethane or Refrigerant gas R 124 [UN1021] [Nonflammable gas] 2-CHLORO-1,1,1,2-TETRAFLUOROETHANE 2837-89-0 Chlorotetrafluoroethane EINECS 220-629-6 Ethane, 2-chloro-1,1,1,2-tetrafluoro- Freon 124 HCFC 124 HCFC-124 HSDB 6754 Hfa-124 R 124 UN1021