InChI=1S/C25H26O18/c26-3-8-13(31)15(33)17(35)21(41-8)9-5(27)2-7-10(14(9)32)11(29)4-1-6(28)12(30)22(20(4)40-7)42-25-19(37)16(34)18(36)23(43-25)24(38)39/h1-2,8,13,15-19,21,23,25-28,30-37H,3H2,(H,38,39)