CNCC(=O)NO    mol31389    0_1
C[NH2+]CC(=O)N[O-]    mol31389    0_2
CNCC(=[OH+])NO    mol31389    1_1
C[NH2+]CC(=O)NO    mol31389    1_2
CNCC(=O)[N-]O    mol31389    -1_1
CNCC(=O)N[O-]    mol31389    -1_2