pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.9	IUPAC digitized pKa	1	0	CCCC[NH2+]C	CCCCNC	mol2000	CCCCNC
10.8	Datawarrior	1	0	CCCC[NH2+]C	CCCCNC	mol2000	CCCCNC
10.8000001907349	QSARToolbox	1	0	CCCC[NH2+]C	CCCCNC	mol2000	CCCCNC