CNc1cc(Cl)n(C)c(=N)n1    mol7222    0_1
CNc1cc(Cl)n(C)c(=[NH2+])n1    mol7222    1_1
C[NH2+]c1cc(Cl)n(C)c(=N)n1    mol7222    1_2
CNc1cc(Cl)n(C)c(=N)[nH+]1    mol7222    1_3