InChI=1S/C35H28O15/c36-17-6-2-14(3-7-17)1-4-15-9-18(37)11-22-25(15)35(34(46)49-22)26-23(47-31(35)16-5-8-20(39)21(40)10-16)12-19(38)13-24(26)48-33-29(43)27(41)28(42)30(50-33)32(44)45/h1-13,27-31,33,36-43H,(H,44,45)/b4-1+