InChI=1S/C16H26O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18/h2-3,6-7,10-11H,4-5,8-9,12-15H2,1H3,(H,17,18)/b3-2-,7-6-,11-10-