pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.59	IUPAC digitized pKa	0	-1	CCC[C@H](O)C(=O)O	CCC[C@H](O)C(=O)[O-]	mol9333	CCCC(O)C(=O)O
3.89	Organic Oxygen Acids and Nitrogen Bases	0	-1	CCC[C@H](O)C(=O)O	CCC[C@H](O)C(=O)[O-]	mol9333	CCCC(O)C(=O)O
3.58999991416931	QSARToolbox	0	-1	CCC[C@H](O)C(=O)O	CCC[C@H](O)C(=O)[O-]	mol9333	CCCC(O)C(=O)O