Nc1nnnn1-c1ccccc1    mol4305    0_1
[NH3+]c1nnnn1-c1ccccc1    mol4305    1_1
Nc1[nH+]nnn1-c1ccccc1    mol4305    1_2
Nc1nn[nH+]n1-c1ccccc1    mol4305    1_3
Nc1n[nH+]nn1-c1ccccc1    mol4305    1_4