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