pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.75	QSARToolbox	1	0	O=C(O)C[NH2+]CC(=O)NO	O=C([O-])C[NH2+]CC(=O)NO	mol37112	O=C(O)CNCC(=O)NO