pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.4	IUPAC digitized pKa	0	-1	CN(CC(=O)[O-])C(=O)CNC(=O)C[NH3+]	CN(CC(=O)[O-])C(=O)CNC(=O)CN	mol8582	CN(CC(=O)O)C(=O)CNC(=O)CN
3.3	IUPAC digitized pKa	1	0	CN(CC(=O)O)C(=O)CNC(=O)C[NH3+]	CN(CC(=O)[O-])C(=O)CNC(=O)C[NH3+]	mol8582	CN(CC(=O)O)C(=O)CNC(=O)CN