InChI=1S/C18H32O3/c1-2-3-4-5-6-8-11-14-17(19)15-12-9-7-10-13-16-18(20)21/h7,10,13,16-17,19H,2-6,8-9,11-12,14-15H2,1H3,(H,20,21)