pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.98	IUPAC digitized pKa	0	-1	O=C(O)CN(CC(=O)O)c1ccccc1O,O=C([O-])C[NH+](CC(=O)O)c1ccccc1O	O=C([O-])C[NH+](CC(=O)[O-])c1ccccc1O	mol11369	O=C(O)CN(CC(=O)O)c1ccccc1O
5.43	IUPAC digitized pKa	-1	-2	O=C([O-])C[NH+](CC(=O)[O-])c1ccccc1O	O=C([O-])CN(CC(=O)[O-])c1ccccc1O	mol11369	O=C(O)CN(CC(=O)O)c1ccccc1O
11.08	IUPAC digitized pKa	-2	-3	O=C([O-])CN(CC(=O)[O-])c1ccccc1O	O=C([O-])CN(CC(=O)[O-])c1ccccc1[O-]	mol11369	O=C(O)CN(CC(=O)O)c1ccccc1O