InChI=1S/C26H28O17S/c27-6-13-18(31)21(34)23(36)26(42-13)16-20(33)15(25-22(35)17(30)11(29)7-40-25)19(32)14-10(28)5-12(41-24(14)16)8-2-1-3-9(4-8)43-44(37,38)39/h1-5,11,13,17-18,21-23,25-27,29-36H,6-7H2,(H,37,38,39)