InChI=1S/C22H20O13S/c1-8-18(26)22(35-36(29,30)31)20(28)21(33-8)17-12(25)7-15-16(19(17)27)11(24)6-13(34-15)9-3-4-10(23)14(5-9)32-2/h3-8,20-23,25,27-28H,1-2H3,(H,29,30,31)