InChI=1S/C20H32/c1-6-15-8-10-17-16(14(15)2)9-11-18-19(3,4)12-7-13-20(17,18)5/h6,8,14,16-18H,1,7,9-13H2,2-5H3/t14-,16-,17-,18-,20+/m1/s1