InChI=1S/C18H30O3/c1-2-3-4-5-7-10-13-16-17(21-16)14-11-8-6-9-12-15-18(19)20/h3-4,7,10,16-17H,2,5-6,8-9,11-15H2,1H3,(H,19,20)/b4-3-,10-7-