InChI=1/C18H14N4O/c23-16-10-12-11-19-18(20-13-6-2-1-3-7-13)22-17(12)14-8-4-5-9-15(14)21-16/h1-9,11H,10H2,(H,21,23)(H,19,20,22)/f/h20-21H 73147809FD573300