InChI=1S/C20H34O12S/c1-4-7-10-28-16(21)13-20(19(24)30-12-9-6-3,14-17(22)29-11-8-5-2)32-18(23)15-31-33(25,26)27/h4-15H2,1-3H3,(H,25,26,27)