InChI=1S/C26H24O17S/c27-11-3-1-9(5-13(11)29)20(32)18-14(30)7-15(31)19(22(18)34)25-24(36)23(35)21(33)17(42-25)8-41-26(37)10-2-4-12(28)16(6-10)43-44(38,39)40/h1-7,17,21,23-25,27-31,33-36H,8H2,(H,38,39,40)