InChI=1S/C35H28O14/c36-18-7-5-16(6-8-18)31-35(26-22(39)12-20(38)14-24(26)47-31)25-17(11-19(37)13-23(25)48-34(35)45)4-1-15-2-9-21(10-3-15)46-33-29(42)27(40)28(41)30(49-33)32(43)44/h1-14,27-31,33,36-42H,(H,43,44)/b4-1+