InChI=1S/C35H20O14/c36-16-8-6-14(7-9-16)23(32(42)43)30-27(39)25(35(46)49-30)18-12-20(37)28-24-17(18)10-15(11-19(24)33(44)47-28)21-26(38)29(48-34(21)45)22(31(40)41)13-4-2-1-3-5-13/h1-12,22,25,29,36-38H,(H,40,41)(H,42,43)/b30-23-