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