CC(=NC#N)N(C)Cc1ccc(Cl)[nH+]c1    mol21841    1_1
CC(=[NH+]C#N)N(C)Cc1ccc(Cl)nc1    mol21841    1_2
CC(=[NH+]C#N)N(C)Cc1ccc(Cl)[nH+]c1    mol21841    2_1