InChI=1S/C21H38O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(22)23/h7-8,10-11H,2-6,9,12-20H2,1H3,(H,22,23)/b8-7-,11-10-