InChI=1S/C25H28O18/c26-4-11-15(32)17(34)19(36)22(41-11)13-10(42-25-21(38)18(35)20(37)23(43-25)24(39)40)3-9(30)12(16(13)33)14(31)5-1-7(28)8(29)2-6(5)27/h1-3,11,15,17-23,25-30,32-38H,4H2,(H,39,40)