pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.88000011444092	QSARToolbox	-1	-2	[NH3+][C@@H](CCP(=O)([O-])O)C(=O)[O-]	[NH3+][C@@H](CCP(=O)([O-])[O-])C(=O)[O-]	mol37718	N[C@@H](CCP(=O)(O)O)C(=O)O