pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.95	IUPAC digitized pKa	1	0	[NH2+]=C1CCCC1	N=C1CCCC1	mol952	N=C1CCCC1
8.9499998	OCHEM	1	0	[NH2+]=C1CCCC1	N=C1CCCC1	mol952	N=C1CCCC1