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