1,1,1,2,4,5,5,5-Octafluoro-2,4-bis[[2,3,5,5,6-pentafluoro-3,6-bis(trifluoromethyl)-1,4-dioxan-2-yl]oxy]-3-pentanone

1,1,1,2,4,5,5,5-octafluoro-2,4-bis[[2,3,5,5,6-pentafluoro-3,6-bis(trifluoromethyl)-1,4-dioxan-2-yl]oxy]pentan-3-one