pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.1	IUPAC digitized pKa	1	0	C[NH2+]CCC#N	CNCCC#N	mol5838	CNCCC#N
8.1000004	OCHEM	1	0	C[NH2+]CCC#N	CNCCC#N	mol5838	CNCCC#N
8.10000038146973	QSARToolbox	1	0	C[NH2+]CCC#N	CNCCC#N	mol5838	CNCCC#N