Tetrafluoroethylene116-14-3100 % similar Polytetrafluoroethylene9002-84-0100 % similar Hexafluorobutadiene685-63-250 % similar 1,1-Dibromo-2,2-difluoroethene430-85-342 % similar Hexafluoropropylene-tetrafluoroethylene copolymer25067-11-240 % similar Iodotrifluoroethylene359-37-538 % similar 1-Bromo-1,2,2-trifluoroethene598-73-238 % similar Chlorotrifluoroethylene79-38-938 % similar Polychlorotrifluoroethylene9002-83-938 % similar Perfluoroisobutene382-21-836 % similar Hexafluoropropylene116-15-433 % similar Hexafluoropropene dimer13429-24-833 % similar Hexafluoropropene trimer6792-31-033 % similar 2-Chloropentafluoro-1,3-butadiene392-42-731 % similar