InChI=1/C16H13N5O/c22-15-9-5-4-8-13(15)10-17-20-16-19-14(11-18-21-16)12-6-2-1-3-7-12/h1-11,22H,(H,19,20,21)/b17-10+/f/h20H A6AFBB89E448B4C1