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