27639-98-1 3,6,9-Trioxadodecanoyl fluoride, tetradecafluoro-2,5,8-tris(trifluoromethyl)- Propanoyl fluoride, 2,3,3,3-tetrafluoro-2-(1,1,2,3,3,3-hexafluoro-2-(1,1,2,3,3,3-hexafluoro-2-(heptafluoropropoxy)propoxy)propoxy)-