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