Refrigerant chemicals

Chlorofluorocarbons (CFCs)
R-11 (Trichlorofluoromethane)
R-12 (Dichlorodifluoromethane)

Hydrochlorofluorocarbons (HCFCs)
R-22 (Chlorodifluoromethane)
R-123 (Dichlorotrifluoroethane)

Hydrofluorocarbons (HFCs)
R-134a (Tetrafluoroethane)
R-410A (Blend of Difluoromethane and Pentafluoroethane)
R-407C (Blend of R-32, R-125, R-134a)
R-404A (Blend of R-125, R-143a, R-134a)

Natural Refrigerants
Ammonia (R-717)
Carbon Dioxide (R-744)
Propane (R-290)
Isobutane (R-600a)

Hydrofluoroolefins (HFOs)
R-1234yf (2,3,3,3-Tetrafluoropropene)
R-1234ze (trans-1,3,3,3-Tetrafluoropropene)