pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.32	IUPAC digitized pKa	0	-1	O=C([O-])C[NH+](CC(=O)O)[C@H]1CCCC[C@@H]1O	O=C([O-])C[NH+](CC(=O)[O-])[C@H]1CCCC[C@@H]1O	mol11424	O=C(O)CN(CC(=O)O)C1CCCCC1O
9.57	IUPAC digitized pKa	-1	-2	O=C([O-])C[NH+](CC(=O)[O-])[C@H]1CCCC[C@@H]1O	O=C([O-])CN(CC(=O)[O-])[C@H]1CCCC[C@@H]1O	mol11424	O=C(O)CN(CC(=O)O)C1CCCCC1O