InChI=1/C19H15N3O/c23-19-14-2-1-3-16-17(14)13(7-9-21-19)18(22-16)12-4-5-15-11(10-12)6-8-20-15/h1-6,8,10,20,22H,7,9H2,(H,21,23)/f/h21H 6DE9F7F4AA94E7E0