InChI=1/C21H14N2O/c24-21-19-15(10-22-21)18-13-7-3-4-8-16(13)23-20(18)14-9-11-5-1-2-6-12(11)17(14)19/h1-8,23H,9-10H2,(H,22,24)/f/h22H 0A7E90DBA9CDD6A6