Cc1nc(N)nc2nccnc12    mol4737    0_1
Cc1nc(N)nc2[nH+]ccnc12    mol4737    1_1
Cc1[nH+]c(N)nc2nccnc12    mol4737    1_2
Cc1nc(N)[nH+]c2nccnc12    mol4737    1_3
Cc1nc(N)nc2ncc[nH+]c12    mol4737    1_4
Cc1nc([NH3+])nc2nccnc12    mol4737    1_5