InChI=1/C15H12N4O2/c20-13-8-4-1-5-10(13)9-16-19-14-15(21)18-12-7-3-2-6-11(12)17-14/h1-9,20H,(H,17,19)(H,18,21)/p+1/b16-9+/fC15H13N4O2/h17-19H/q+1 CB32156F7A55E3E7