Desflurane57041-67-5100 % similar Isoflurane26675-46-750 % similar 1,1,1,2,2,3,3-Heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)propane3330-15-238 % similar 2,2,2-Trifluoroethyl difluoromethyl ether1885-48-936 % similar Pentafluoroethane354-33-633 % similar 1,1,1,2,3,3,3-Heptafluoropropane431-89-033 % similar