InChI=1S/C33H26O13/c1-33-11-17(16-5-3-14(34)9-21(16)46-33)28-24(30(33)39)23-18(35)6-13(8-22(23)44-28)19-7-12-2-4-15(10-20(12)43-19)42-32-27(38)25(36)26(37)29(45-32)31(40)41/h2-10,17,25-27,29,32,34-38H,11H2,1H3,(H,40,41)