pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.5	QSARToolbox	1	0	O=C([O-])C[NH+]1CCOCCOCC[NH+](CC(=O)O)CCOCCOCC1	O=C([O-])C[NH+]1CCOCCOCC[NH+](CC(=O)[O-])CCOCCOCC1	mol38430	O=C(O)CN1CCOCCOCCN(CC(=O)O)CCOCCOCC1