1 – 1 – 1 – 2 – 4 – 4 – 5 – 7 – 7 – 8 – 10 – 10 – 11 – 13 – 13 – 14 – 16 – 16 – 17 – 17 – 18 – 18 – 18-Tricosafluoro-5 – 8 – 11 – 14-tetrakis(trifluoromethyl)-3 – 6 – 9 – 12 – 15-pentaoxaoctadecane

1 – 1 – 1 – 2-Tetrafluoro-4-iodo-2-(trifluoromethyl)butane