InChI=1S/C26H28O16S/c27-7-13-18(31)21(34)22(35)24(41-13)16-20(33)15(25-26(42-43(36,37)38)17(30)11(29)8-39-25)19(32)14-10(28)6-12(40-23(14)16)9-4-2-1-3-5-9/h1-6,11,13,17-18,21-22,24-27,29-35H,7-8H2,(H,36,37,38)