pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.94	IUPAC digitized pKa	1	0	OCC[NH2+]Cc1ccccn1	OCCNCc1ccccn1	mol6498	OCCNCc1ccccn1
3.15	IUPAC digitized pKa	2	1	OCC[NH2+]Cc1cccc[nH+]1	OCC[NH2+]Cc1ccccn1	mol6498	OCCNCc1ccccn1