Synonyms: Tetrafluoro-2-(heptafluoro-1-propoxy)propanoyl fluoride (Hexafluoropropene oxide dimer);Tetrafluoroheptafluoropropoxypropanoylfluoride;TETRAFLUORO-2-(HEPTAFLUORO-1-PROPOXY)PROPANOYL FLUOROIDE;2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propanoyl fluoride;2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)propionyl fluoride