pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.72	IUPAC digitized pKa	0	-1	C[C@H](ON)C(=O)O,C[C@H](O[NH3+])C(=O)[O-]	C[C@H](ON)C(=O)[O-]	mol8500	CC(ON)C(=O)O
3.24000000953674	QSARToolbox	1	0	C[C@H](O[NH3+])C(=O)O	C[C@H](ON)C(=O)O,C[C@H](O[NH3+])C(=O)[O-]	mol8500	CC(ON)C(=O)O