pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.34999990463257	QSARToolbox	2	1	[NH3+]CC[NH2+]CC(=O)O	[NH3+]CC[NH2+]CC(=O)[O-]	mol33972	NCCNCC(=O)O