InChI=1S/C34H30O12/c35-20-7-5-17(6-8-20)31-27(19-12-21(36)14-22(37)13-19)26-18(11-23(38)15-25(26)45-31)4-1-16-2-9-24(10-3-16)44-34-30(41)28(39)29(40)32(46-34)33(42)43/h1-15,27-32,34-41H,(H,42,43)/b4-1-