InChI=1S/C21H20O13S/c22-6-13-17(25)19(27)20(28)21(34-13)33-12-3-1-2-9-15(12)18(26)14-10(16(9)24)4-8(5-11(14)23)7-32-35(29,30)31/h1-5,13,17,19-23,25,27-28H,6-7H2,(H,29,30,31)