InChI=1S/C31H52O/c1-20-12-15-28(5)18-19-30(7)23-10-11-24-27(3,4)25(32-9)14-16-29(24,6)22(23)13-17-31(30,8)26(28)21(20)2/h10,20-22,24-26H,11-19H2,1-9H3