pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.34999990463257	QSARToolbox	1	0	CN(CC(=O)NCC(=O)NCC(=O)O)C(=O)C[NH3+]	CN(CC(=O)NCC(=O)NCC(=O)[O-])C(=O)C[NH3+]	mol34151	CN(CC(=O)NCC(=O)NCC(=O)O)C(=O)CN