InChI=1S/C27H28O17S/c1-8-20(32)23(35)26(43-27-24(36)22(34)19(31)9(2)41-27)25(40-8)18-13(30)7-16-17(21(18)33)12(29)6-14(42-16)10-3-4-11(28)15(5-10)44-45(37,38)39/h3-9,19,22-28,30-31,33-36H,1-2H3,(H,37,38,39)