InChI=1S/C19H20O14S/c20-7-2-1-6(3-8(7)21)14(24)12-9(22)4-10(23)13(16(12)26)19-18(28)17(27)15(25)11(33-19)5-32-34(29,30)31/h1-4,11,15,17-23,25-28H,5H2,(H,29,30,31)