pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.38	OCHEM	-1	-2	CC[C@H](CC(=O)[O-])C(=O)O,CC[C@H](CC(=O)O)C(=O)[O-]	CC[C@H](CC(=O)[O-])C(=O)[O-]	mol32972	CCC(CC(=O)O)C(=O)O
4.80000019073486	QSARToolbox	-1	-2	CC[C@H](CC(=O)[O-])C(=O)O,CC[C@H](CC(=O)O)C(=O)[O-]	CC[C@H](CC(=O)[O-])C(=O)[O-]	mol32972	CCC(CC(=O)O)C(=O)O