C[NH+](C)c1ccnc([O-])n1    mol4181    0_1
CN(C)c1ccnc(O)n1    mol4181    0_2
C[NH+](C)c1ccnc(O)n1    mol4181    1_1
CN(C)c1ccnc(O)[nH+]1    mol4181    1_2
CN(C)c1cc[nH+]c(O)n1    mol4181    1_3
CN(C)c1ccnc([O-])n1    mol4181    -1_1