CN(C)c1ccn(C)c(=N)n1    mol4177    0_1
CN(C)c1ccn(C)c(=N)[nH+]1    mol4177    1_1
CN(C)c1ccn(C)c(=[NH2+])n1    mol4177    1_2
Cn1ccc([NH+](C)C)nc1=N    mol4177    1_3