Synonyms: Propanoylfluoride, 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)- (9CI); Propionyl fluoride,2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)- (7CI); Propionyl fluoride,tetrafluoro-2-(heptafluoropropoxy)- (8CI);2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propanoyl fluoride;2-(Heptafluoropropoxy)tetrafluoropropionyl fluoride; Hexafluoropropene oxidedimer; Perfluoro(2-methyl-3-oxahexanoyl) fluoride;Perfluoro-2-(trifluoromethyl)-3-oxahexanoyl fluoride;Perfluoro-2-propoxypropanoyl fluoride