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