CNc1cc(Cl)nc(NC)n1    mol7220    0_1
CNc1cc(Cl)[nH+]c(NC)n1    mol7220    1_1
CNc1cc(Cl)nc(NC)[nH+]1    mol7220    1_2
CNc1cc(Cl)nc([NH2+]C)n1    mol7220    1_3
CNc1nc(Cl)cc([NH2+]C)n1    mol7220    1_4