InChI=1/C24H20N2O/c27-24-19-12-7-13-20-22(19)18(14-15-25-24)23(26-20)21(16-8-3-1-4-9-16)17-10-5-2-6-11-17/h1-13,21,26H,14-15H2,(H,25,27)/f/h25H 4B31A75C83C35F30