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