pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-3.47	IUPAC digitized pKa	2	1	O=[N+]([O-])c1ccc(/[NH+]=[NH+]/c2ccccc2)cc1	O=[N+]([O-])c1ccc(/N=[NH+]/c2ccccc2)cc1	mol3405	O=[N+]([O-])c1ccc(/N=N/c2ccccc2)cc1
-3.4	AttenGpKa training set	2	1	O=[N+]([O-])c1ccc(/[NH+]=[NH+]/c2ccccc2)cc1	O=[N+]([O-])c1ccc(/N=[NH+]/c2ccccc2)cc1	mol3405	O=[N+]([O-])c1ccc(/N=N/c2ccccc2)cc1