InChI=1S/C20H32O8S/c1-2-3-6-10-17(28-29(24,25)26)20-19(27-20)15-12-13-16(21)14(15)9-7-4-5-8-11-18(22)23/h17,19-20H,2-13H2,1H3,(H,22,23)(H,24,25,26)