InChI=1S/C18H32O5/c1-2-3-4-6-9-12-15(19)18(23)16(20)13-10-7-5-8-11-14-17(21)22/h3-4,9,12,15-16,18-20,23H,2,5-8,10-11,13-14H2,1H3,(H,21,22)/b4-3-,12-9-/t15-,16+,18-/m1/s1