InChI=1/C18H14N4/c1-12-7-9-14(10-8-12)17-21-15(13-5-3-2-4-6-13)16-18(22-17)20-11-19-16/h2-11H,1H3,(H,19,20,21,22)/f/h19H 8AD27AB902745393