Cn1nnnc1N    mol4301    0_1
Cn1nnnc1[NH3+]    mol4301    1_1
Cn1nn[nH+]c1N    mol4301    1_2
Cn1n[nH+]nc1N    mol4301    1_3
Cn1[nH+]nnc1N    mol4301    1_4