9,12,15,18,21,24,27,30,33,36,39-Undecaoxaheptatetracontane,1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,40,40,41,41,42,42,43,43,44,44,45,45,46,46,47,47,47-tetratriacontafluoro-