Cc1n[nH+]nn1CC(=O)[O-]    mol12951    0_1
Cc1[nH+]nnn1CC(=O)[O-]    mol12951    0_2
Cc1nn[nH+]n1CC(=O)[O-]    mol12951    0_3
Cc1nnnn1CC(=O)O    mol12951    0_4
Cc1nnnn1CC(=O)[O-]    mol12951    -1_1