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