InChI=1S/C18H30O4/c1-2-3-4-5-6-7-11-16(19)13-10-14-17(20)12-8-9-15-18(21)22/h6-7,10,13,16,19H,2-5,8-9,11-12,14-15H2,1H3,(H,21,22)/b7-6-,13-10+/t16-/m0/s1