pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.8	IUPAC digitized pKa	1	0	[NH3+]C[C@@H](O)CC(=O)O	[NH3+]C[C@@H](O)CC(=O)[O-]	mol9239	NCC(O)CC(=O)O
3.79999995231628	QSARToolbox	1	0	[NH3+]C[C@@H](O)CC(=O)O	[NH3+]C[C@@H](O)CC(=O)[O-]	mol9239	NCC(O)CC(=O)O