pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.19000005722046	QSARToolbox	-1	-2	O=C([O-])CC(O)(CC(=O)O)C(=O)Nc1ccccc1	O=C([O-])CC(O)(CC(=O)[O-])C(=O)Nc1ccccc1	mol36006	O=C(O)CC(O)(CC(=O)O)C(=O)Nc1ccccc1