pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.03	IUPAC digitized pKa	0	-1	C[C@@H](OCC(=O)O)C(=O)O	C[C@@H](OCC(=O)O)C(=O)[O-],C[C@@H](OCC(=O)[O-])C(=O)O	mol9329	CC(OCC(=O)O)C(=O)O
4.58	IUPAC digitized pKa	-1	-2	C[C@@H](OCC(=O)O)C(=O)[O-],C[C@@H](OCC(=O)[O-])C(=O)O	C[C@@H](OCC(=O)[O-])C(=O)[O-]	mol9329	CC(OCC(=O)O)C(=O)O