InChI=1S/C35H20O14/c36-20-13-18(25-28(39)30(49-35(25)47)23(33(44)45)15-9-5-2-6-10-15)17-11-16(12-19-24(17)29(20)48-34(19)46)22(32(42)43)27(38)26(37)21(31(40)41)14-7-3-1-4-8-14/h1-13,22,36-37,39H,(H,40,41)(H,42,43)(H,44,45)/b26-21-,30-23-