CCC(=O)ONCC(=O)O    mol29423    0_1
CCC(=O)O[NH2+]CC(=O)[O-]    mol29423    0_2
CCC(=[OH+])ONCC(=O)O    mol29423    1_1
CCC(=O)O[NH2+]CC(=O)O    mol29423    1_2
CCC(=O)ONCC(O)=[OH+]    mol29423    1_3