InChI=1S/C38H30O19/c1-8-5-14(56-38-35(51)33(49)34(50)36(57-38)37(52)53)19-22(25(8)41)30(46)20-15(28(19)44)10(39)6-12(54-3)17(20)18-13(55-4)7-11(40)16-21(18)31(47)23-24(29(16)45)32(48)27(43)9(2)26(23)42/h5-7,33-36,38-43,48-51H,1-4H3,(H,52,53)