pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.542	IUPAC digitized pKa	0	-1	Cc1ccc(S(=O)(=O)CC(=O)O)cc1	Cc1ccc(S(=O)(=O)CC(=O)[O-])cc1	mol11033	Cc1ccc(S(=O)(=O)CC(=O)O)cc1
2.53999996185303	QSARToolbox	0	-1	Cc1ccc(S(=O)(=O)CC(=O)O)cc1	Cc1ccc(S(=O)(=O)CC(=O)[O-])cc1	mol11033	Cc1ccc(S(=O)(=O)CC(=O)O)cc1
2.61999988555908	QSARToolbox	0	-1	Cc1ccc(S(=O)(=O)CC(=O)O)cc1	Cc1ccc(S(=O)(=O)CC(=O)[O-])cc1	mol11033	Cc1ccc(S(=O)(=O)CC(=O)O)cc1