InChI=1S/C20H32O2/c1-15(2)17-8-7-16(3)18-10-14-20(5,22-18)12-6-11-19(4,21)13-9-17/h6,9,12-13,15,17-18,21H,3,7-8,10-11,14H2,1-2,4-5H3/b12-6+,13-9+/t17-,18+,19-,20+/m1/s1