NCC(=O)Nc1cccc(C(=O)O)c1    mol34222    0_1
[NH3+]CC(=O)Nc1cccc(C(=O)[O-])c1    mol34222    0_2
[NH3+]CC(=O)Nc1cccc(C(=O)O)c1    mol34222    1_1
NCC(=O)Nc1cccc(C(O)=[OH+])c1    mol34222    1_2
NCC(=[OH+])Nc1cccc(C(=O)O)c1    mol34222    1_3