InChI=1/C13H12N4O/c14-12(11-8-4-5-9-15-11)16-17-13(18)10-6-2-1-3-7-10/h1-9H,(H2,14,16)(H,17,18)/p+1/fC13H13N4O/h16-17H,14H2/q+1 354AE508AED14F1D