CNc1nc(N)cc(Cl)n1    mol4064    0_1
CNc1nc([NH3+])cc(Cl)n1    mol4064    1_1
CNc1nc(Cl)cc(N)[nH+]1    mol4064    1_2
CNc1nc(N)cc(Cl)[nH+]1    mol4064    1_3
C[NH2+]c1nc(N)cc(Cl)n1    mol4064    1_4