InChI=1S/C25H26O17/c26-4-11-15(31)16(32)18(34)22(40-11)12-8(29)3-10-13(14(30)5-1-6(27)7(28)2-9(5)39-10)21(12)41-25-20(36)17(33)19(35)23(42-25)24(37)38/h1-3,11,15-20,22-23,25-29,31-36H,4H2,(H,37,38)