pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-2.0	IUPAC digitized pKa	1	0	CCN(C#[NH+])CC	CCN(C#N)CC	mol3132	CCN(C#N)CC
1.2	IUPAC digitized pKa	1	0	CCN(C#[NH+])CC	CCN(C#N)CC	mol3132	CCN(C#N)CC