InChI=1S/C38H32O18/c1-9-5-11(39)19-25(27(9)42)31(46)23-17(29(19)44)12(40)7-14(53-3)20(23)21-15(54-4)8-13(41)18-24(21)32(47)26-22(30(18)45)16(6-10(2)28(26)43)55-38-35(50)33(48)34(49)36(56-38)37(51)52/h5-8,30,33-36,38-43,45,48-50H,1-4H3,(H,51,52)