NCc1nnn[nH]1    mol16042    0_1
NCc1n[nH+]n[nH]1    mol16042    1_1
NCc1[nH]nn[nH+]1    mol16042    1_2
[NH3+]Cc1nnn[nH]1    mol16042    1_3
NCc1nn[nH+][nH]1    mol16042    1_4
NCc1nnn[n-]1    mol16042    -1_1