pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.58	IUPAC digitized pKa	0	-1	[O-]c1ccccc1C1=[NH+]CCN1	[O-]c1ccccc1C1=NCCN1	mol3932	Oc1ccccc1C1=NCCN1
6.63	IUPAC digitized pKa	1	0	Oc1ccccc1C1=[NH+]CCN1	[O-]c1ccccc1C1=[NH+]CCN1	mol3932	Oc1ccccc1C1=NCCN1
6.6300001	OCHEM	1	0	Oc1ccccc1C1=[NH+]CCN1	[O-]c1ccccc1C1=[NH+]CCN1	mol3932	Oc1ccccc1C1=NCCN1