pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-0.49	IUPAC digitized pKa	1	0	CCC(N)=[OH+]	CCC(N)=O	mol3127	CCC(N)=O
-0.86	AttenGpKa training set	1	0	CCC(N)=[OH+]	CCC(N)=O	mol3127	CCC(N)=O