InChI=1S/C36H26O17/c37-12-8-16-22(21-13-2-1-3-17(38)23(13)27(41)24-14(21)4-10(33(46)47)6-18(24)39)15-5-11(34(48)49)7-19(40)25(15)28(42)26(16)20(9-12)52-36-31(45)29(43)30(44)32(53-36)35(50)51/h1-9,21-22,29-32,36-40,43-45H,(H,46,47)(H,48,49)(H,50,51)