InChI=1/C20H20N6O/c21-19-16(20-25-17-3-1-2-4-18(17)27-20)9-13(10-23-19)14-11-24-26(12-14)15-5-7-22-8-6-15/h1-4,9-12,15,22H,5-8H2,(H2,21,23)/p+1/fC20H21N6O/h22H,21H2/q+1 81627E14123F5AE2