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/h10-11,13-14H,2-9,12,15-20H2,1H3,(H,22,23)/b11-10-,14-13-