InChI=1S/C20H24O9S/c1-11-14(10-28-30(23,24)25)20(13-5-7-16(22)18(9-13)27-3)29-19(11)12-4-6-15(21)17(8-12)26-2/h4-9,11,14,19-22H,10H2,1-3H3,(H,23,24,25)