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