Cn1cnc(=N)c(N)c1N    mol7279    0_1
Cn1cnc(=N)c([NH3+])c1N    mol7279    1_1
Cn1cnc(=N)c(N)c1[NH3+]    mol7279    1_2
Cn1cnc(=[NH2+])c(N)c1N    mol7279    1_3
Cn1c[nH+]c(=N)c(N)c1N    mol7279    1_4