NCCC=CC(=O)O    mol32402    0_1
[NH3+]CCC=CC(=O)[O-]    mol32402    0_2
NCCC=CC(O)=[OH+]    mol32402    1_1
[NH3+]CCC=CC(=O)O    mol32402    1_2
NCCC=CC(=O)[O-]    mol32402    -1_1