InChI=1S/C44H30O13/c45-35-36(46)38(41(50)51)55-42(37(35)47)54-22-12-6-19(7-13-22)24-15-9-21-11-17-26-32-28(21)30(24)40(49)44(53)34(32)33-31-25(57-44)16-10-20-8-14-23(18-4-2-1-3-5-18)29(27(20)31)39(48)43(33,52)56-26/h1-17,33-38,42,45-47,52-53H,(H,50,51)