Synonyms: Propanoylfluoride, 2,3,3,3-tetrafluoro-2-[1,1,2,3,3,3-hexafluoro-2-(heptafluoropropoxy)propoxy]-(9CI);Propionyl fluoride,2,3,3,3-tetrafluoro-2-[1,1,2,3,3,3-hexafluoro-2-(heptafluoropropoxy)propoxy]-(7CI);Propionyl fluoride,tetrafluoro-2-[hexafluoro-2-(heptafluoropropoxy)propoxy]- (8CI);Hexafluoropropeneoxide trimer;