pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.3	IUPAC digitized pKa	1	0	CC(C)([NH3+])C#N	CC(C)(N)C#N	mol3158	CC(C)(N)C#N
5.3000002	OCHEM	1	0	CC(C)([NH3+])C#N	CC(C)(N)C#N	mol3158	CC(C)(N)C#N
5.30000019073486	QSARToolbox	1	0	CC(C)([NH3+])C#N	CC(C)(N)C#N	mol3158	CC(C)(N)C#N