InChI=1S/C33H26O14/c1-33-10-15(14-3-2-13(8-21(14)47-33)43-32-27(39)25(37)26(38)29(46-32)31(41)42)28-24(30(33)40)23-18(36)5-12(7-22(23)45-28)19-6-11-4-16(34)17(35)9-20(11)44-19/h2-9,15,25-27,29,32,34-39H,10H2,1H3,(H,41,42)