InChI=1/C21H18N6O/c1-3-27-19-14(5-4-9-23-19)21(28)26(2)18-7-6-16(25-20(18)27)15-11-24-17-12-22-10-8-13(15)17/h4-10,12H,3,11H2,1-2H3/p+1/fC21H19N6O/h24H/q+1 83A2B3FFE5F55A2F