pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.73	IUPAC digitized pKa	0	-1	C[C@@](O)(CC(=O)C(=O)O)C(=O)O	C[C@@](O)(CC(=O)C(=O)O)C(=O)[O-],C[C@@](O)(CC(=O)C(=O)[O-])C(=O)O	mol9568	CC(O)(CC(=O)C(=O)O)C(=O)O
3.72	IUPAC digitized pKa	-1	-2	C[C@@](O)(CC(=O)C(=O)O)C(=O)[O-],C[C@@](O)(CC(=O)C(=O)[O-])C(=O)O	C[C@@](O)(CC(=O)C(=O)[O-])C(=O)[O-]	mol9568	CC(O)(CC(=O)C(=O)O)C(=O)O