InChI=1S/C31H50O2/c1-8-23(20(2)3)10-9-21(4)27-13-14-28-26-12-11-24-19-25(33-22(5)32)15-17-30(24,6)29(26)16-18-31(27,28)7/h8,11,20-21,25-29H,9-10,12-19H2,1-7H3/b23-8-/t21-,25+,26+,27+,28+,29-,30+,31+/m1/s1