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