InChI=1S/C19H18O15S/c20-3-8-13(25)19(34-35(29,30)31)16(28)18(33-8)9-5(21)2-7-10(14(9)26)11(23)4-1-6(22)12(24)15(27)17(4)32-7/h1-2,8,13,16,18-22,24-28H,3H2,(H,29,30,31)