pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.1	IUPAC digitized pKa	0	-1	CC(=O)C[N+](=O)[O-]	CC(=O)[CH-][N+](=O)[O-]	mol9034	CC(=O)C[N+](=O)[O-]
5.0999999	OCHEM	0	-1	CC(=O)C[N+](=O)[O-]	CC(=O)[CH-][N+](=O)[O-]	mol9034	CC(=O)C[N+](=O)[O-]
5.09999990463257	QSARToolbox	0	-1	CC(=O)C[N+](=O)[O-]	CC(=O)[CH-][N+](=O)[O-]	mol9034	CC(=O)C[N+](=O)[O-]