InChI=1S/C19H14O14S/c20-8-3-1-7(2-4-8)9-6-31-10-5-11(14(22)15(23)12(10)13(9)21)32-16(18(24)25)17(19(26)27)33-34(28,29)30/h1-6,16-17,20,22-23H,(H,24,25)(H,26,27)(H,28,29,30)