InChI=1S/C36H30O17/c37-14-8-18(40)25-23(9-14)52-32(12-1-4-15(5-2-12)50-36-31(47)29(45)30(46)34(53-36)35(48)49)27(28(25)44)26-20(42)10-19(41)24-21(43)11-22(51-33(24)26)13-3-6-16(38)17(39)7-13/h1-10,22,27,29-32,34,36-42,45-47H,11H2,(H,48,49)