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