InChI=1S/C35H28O14/c36-18-8-6-16(7-9-18)31-35(25-17(5-4-15-2-1-3-19(37)10-15)11-20(38)12-23(25)48-34(35)45)26-22(39)13-21(14-24(26)47-31)46-33-29(42)27(40)28(41)30(49-33)32(43)44/h1-14,27-31,33,36-42H,(H,43,44)/b5-4+