InChI=1/C18H15N5/c1-2-8-19-14(4-1)18-17(16-5-3-9-23(16)22-18)12-6-7-13-15(10-12)21-11-20-13/h1-2,4,6-8,10-11H,3,5,9H2,(H,20,21)/f/h21H 33FF1278C10FEEF9