InChI=1S/C18H30O7S/c1-2-3-9-12-15-18(24-15)16(25-26(21,22)23)13-10-7-5-4-6-8-11-14-17(19)20/h3,9-10,13,15-16,18H,2,4-8,11-12,14H2,1H3,(H,19,20)(H,21,22,23)/b9-3-,13-10+