Cc1cnc2nc(N)ncc2n1    mol4738    0_1
Cc1c[nH+]c2nc(N)ncc2n1    mol4738    1_1
Cc1cnc2[nH+]c(N)ncc2n1    mol4738    1_2
Cc1cnc2nc(N)[nH+]cc2n1    mol4738    1_3
Cc1cnc2nc([NH3+])ncc2n1    mol4738    1_4
Cc1cnc2nc(N)ncc2[nH+]1    mol4738    1_5