Major HFO Molecules

Designation Complete name Formula Cas number GWP Main Potential Applications
HFO 1234yf 2,3,3,3- tetrafluoroprop-1-ene CF3CF=CH2 754-12-1 0 (1) Mobile air-conditioning
stationary air conditioning
and refrigeration
HFO 1234zeE Trans-1,3,3-tetrafluoroprop-1-ene Trans- CF3CH=CFH 29118-24-9 1 (1) Aerosol Propellants
and refrigeration
and air conditioning, insulations foams
HFO-1233zdE Trans 1-Chloro-3,3,3-
Trans-CHCl=CHCF3 2730-43-0 GWP=1
Insulating foams, precision solvents
chiller applications
HFO-1336mzz 1,1,1,4,4,4-hexafluorobut-2-ene cis-
692-49-9 2(1) Insulating foams, chillers.
 HBFO-1233xfB  2-bromo-3,3,3-trifluoropropene
CF3CBr=CH2  1514-82-5 0.23-0.26(3) Fire extinguisher agent


See also: Hydrofluoroolefins (HFOs)


1)  IPCC Working Group I – The Physical Science Basis – Chap.8 Annex 8.A.1

2) Hodneborg et al., Table 4