InChI=1S/C33H26O13/c1-33-11-17(16-5-4-15(35)10-20(16)46-33)28-24(30(33)39)23-21(43-28)7-13(18-6-12-2-3-14(34)9-19(12)42-18)8-22(23)44-32-27(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)