Nc1nnn[nH]1    mol4296    0_1
[NH3+]c1nnn[nH]1    mol4296    1_1
Nc1[nH]nn[nH+]1    mol4296    1_2
Nc1n[nH+]n[nH]1    mol4296    1_3
Nc1nn[nH+][nH]1    mol4296    1_4
Nc1nnn[n-]1    mol4296    -1_1