18017-31-7 Decafluoro-5-(trifluoromethyl)hexanoyl fluoride EINECS 241-926-7 Hexanoyl fluoride, 2,2,3,3,4,4,5,6,6,6-decafluoro-5-(trifluoromethyl)- Hexanoyl fluoride, decafluoro-5-(trifluoromethyl)-