InChI=1S/C38H30O19/c1-9-4-16(56-38-35(51)33(49)34(50)36(57-38)37(52)53)22-26(27(9)43)32(48)24-18(30(22)46)13(42)7-15(55-3)21(24)20-14(54-2)6-12(41)17-23(20)31(47)25-19(29(17)45)11(40)5-10(8-39)28(25)44/h4-7,33-36,38-44,49-51H,8H2,1-3H3,(H,52,53)