InChI=1S/C35H28O15/c36-16-6-1-14(2-7-16)3-10-19-24-23(13-21(39)26(19)40)49-34(46)35(24)25-20(38)11-17(37)12-22(25)48-31(35)15-4-8-18(9-5-15)47-33-29(43)27(41)28(42)30(50-33)32(44)45/h1-13,27-31,33,36-43H,(H,44,45)/b10-3+