InChI=1S/C20H30O3/c1-2-3-16-19(21)17-14-12-10-8-6-4-5-7-9-11-13-15-18-20(22)23/h3-5,8-12,14,16,19,21H,2,6-7,13,15,17-18H2,1H3,(H,22,23)/b5-4+,10-8+,11-9+,14-12+,16-3+