InChI=1S/C35H28O14/c36-17-9-7-16(8-10-17)31-35(24-19(11-6-15-4-2-1-3-5-15)26(39)21(38)14-23(24)48-34(35)45)25-20(37)12-18(13-22(25)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)/b11-6+