Cc1nc2ncncc2nc1O    mol4820    0_1
Cc1nc2nc[nH+]cc2nc1[O-]    mol4820    0_2
Cc1[nH+]c2ncncc2nc1[O-]    mol4820    0_3
Cc1nc2[nH+]cncc2nc1[O-]    mol4820    0_4
Cc1nc2ncncc2nc1[O-]    mol4820    -1_1