InChI=1S/C20H20O14S/c21-8-4-11(24)14-12(5-8)32-18(7-1-2-9(22)10(23)3-7)19(16(14)26)34-20-17(27)15(25)13(33-20)6-31-35(28,29)30/h1-5,13,15,17-25,27H,6H2,(H,28,29,30)