InChI=1S/C20H24O6S/c1-25-18(13-12-16-8-4-2-5-9-16)15-19(21)20(26-27(22,23)24)14-17-10-6-3-7-11-17/h2-11,18,20H,12-15H2,1H3,(H,22,23,24)