19190-57-9
2,2,3,3,4,4-hexafluoro-4-(1,1,1,2,3-pentafluoro-3-oxopropan-2-yl)oxybutanoyl fluoride
→
919005-52-0
2,2,3,3,4,4-hexafluoro-4-(1,2,2,2-tetrafluoroethoxy)butanoic acid