pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.93	IUPAC digitized pKa	1	0	[NH3+]CCCBr	NCCCBr	mol875	NCCCBr
8.9300003	OCHEM	1	0	[NH3+]CCCBr	NCCCBr	mol875	NCCCBr
8.93000030517578	QSARToolbox	1	0	[NH3+]CCCBr	NCCCBr	mol875	NCCCBr
8.9	AttenGpKa training set	1	0	[NH3+]CCCBr	NCCCBr	mol875	NCCCBr