InChI=1/C13H10N6O2/c20-12-5-1-8-7-9(2-3-10(8)14-12)21-13-6-4-11-15-17-18-19(11)16-13/h2-4,6-7H,1,5H2,(H,14,20)/f/h14H EF212FE47DBABF59