InChI=1S/C36H26O17/c37-17-3-1-2-13-21(14-4-10(33(46)47)6-18(38)24(14)27(41)23(13)17)22-15-5-11(34(48)49)7-19(39)25(15)28(42)26-16(22)8-12(9-20(26)40)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)