2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propionyl fluoride 2062-98-8 75566-60-8 EINECS 218-173-8 Propanoyl fluoride, 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)- Propionyl fluoride, tetrafluoro-2-(heptafluoropropoxy)-