InChI=1S/C19H18O14S/c20-4-11-15(25)19(33-34(28,29)30)17(27)18(32-11)12-8(23)3-10-13(16(12)26)14(24)5-1-6(21)7(22)2-9(5)31-10/h1-3,11,15,17-23,25-27H,4H2,(H,28,29,30)