InChI=1S/C26H26O18/c27-6-1-5-9(2-7(6)28)41-10-3-8(29)13(23-19(36)17(34)16(33)11(42-23)4-12(30)31)22(14(10)15(5)32)43-26-21(38)18(35)20(37)24(44-26)25(39)40/h1-3,11,16-21,23-24,26-29,33-38H,4H2,(H,30,31)(H,39,40)