InChI=1S/C18H34O6S/c1-2-3-4-11-14-17(24-25(21,22)23)15-12-9-7-5-6-8-10-13-16-18(19)20/h9,12,17H,2-8,10-11,13-16H2,1H3,(H,19,20)(H,21,22,23)/b12-9-