InChI=1S/C35H28O13/c36-19-11-17(10-9-16-5-2-1-3-6-16)25-23(14-19)47-34(44)35(25)26-22(38)13-20(37)15-24(26)46-31(35)18-7-4-8-21(12-18)45-33-29(41)27(39)28(40)30(48-33)32(42)43/h1-15,27-31,33,36-41H,(H,42,43)/b10-9+