InChI=1S/C21H14O17S/c22-9-1-6(19(29)30)3-12(15(9)26)36-20(31)7-2-11(24)18(38-39(33,34)35)13(4-7)37-21(32)8-5-10(23)16(27)17(28)14(8)25/h1-5,22-28H,(H,29,30)(H,33,34,35)