pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.55	IUPAC digitized pKa	0	-1	CC[NH+](CC(=O)[O-])CC(=O)O	CC[NH+](CC(=O)[O-])CC(=O)[O-]	mol9805	CCN(CC(=O)O)CC(=O)O
2.70000004768372	QSARToolbox	0	-1	CC[NH+](CC(=O)[O-])CC(=O)O	CC[NH+](CC(=O)[O-])CC(=O)[O-]	mol9805	CCN(CC(=O)O)CC(=O)O
8.56	IUPAC digitized pKa	-1	-2	CC[NH+](CC(=O)[O-])CC(=O)[O-]	CCN(CC(=O)[O-])CC(=O)[O-]	mol9805	CCN(CC(=O)O)CC(=O)O