InChI=1S/C22H26O9S/c1-6-7-13-8-15-16(12-30-32(23,24)25)20(31-21(15)17(9-13)26-2)14-10-18(27-3)22(29-5)19(11-14)28-4/h6-11,16,20H,12H2,1-5H3,(H,23,24,25)