pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.1800000667572	QSARToolbox	2	1	CCO[NH+]1CC[NH2+]CC1	CCON1CC[NH2+]CC1	mol38172	CCON1CCNCC1