InChI=1S/C34H38O18/c1-28-9-16-30(3)34-21(28)23(39)33(51-34,45-10-13(28)25(42)46-16)12-8-15(47-26-19(37)17(35)18(36)20(48-26)24(40)41)32-7-5-14(50-52-32)22(38)29(32,2)11(12)4-6-31(34,44)27(43)49-30/h5,7,11-21,26,35-37,44H,4,6,8-10H2,1-3H3,(H,40,41)