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