1,1,1,3,3-Pentafluorobutane406-58-6100 % similar 1,1,1,3,3,3-Hexafluoropropane690-39-150 % similar 2,2-Difluoro-1-propanol33420-52-943 % similar 1,1,1-Trifluoropropane421-07-835 % similar 1,1,1,2-Tetrafluoroethane811-97-230 % similar