InChI=1S/C22H20O12S/c1-9-18(25)20(27)22(34-35(28,29)30)21(32-9)17-13(24)8-15-16(19(17)26)12(23)7-14(33-15)10-4-3-5-11(6-10)31-2/h3-9,20-22,24,26-27H,1-2H3,(H,28,29,30)