InChI=1S/C20H34O12S/c1-5-8-11-28-16(22)14-20(31-15(4)21,19(24)30-13-10-7-3)17(32-33(25,26)27)18(23)29-12-9-6-2/h17H,5-14H2,1-4H3,(H,25,26,27)