InChI=1S/C35H28O14/c36-18-10-8-16(9-11-18)31-35(23-17(7-6-15-4-2-1-3-5-15)12-19(37)13-21(23)47-34(35)45)24-22(46-31)14-20(38)25(39)29(24)48-33-28(42)26(40)27(41)30(49-33)32(43)44/h1-14,26-28,30-31,33,36-42H,(H,43,44)/b7-6+