InChI=1S/C31H50O2/c1-19(2)20(3)9-10-21(4)25-13-14-27-24-11-12-26-22(5)29(33-23(6)32)16-18-31(26,8)28(24)15-17-30(25,27)7/h9,11,19,21-22,25-29H,10,12-18H2,1-8H3