pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-6.2	IUPAC digitized pKa	1	0	O=[N+]([O-])c1ccc([NH2+]c2ccc([N+](=O)[O-])cc2)cc1	O=[N+]([O-])c1ccc(Nc2ccc([N+](=O)[O-])cc2)cc1	mol3367	O=[N+]([O-])c1ccc(Nc2ccc([N+](=O)[O-])cc2)cc1
-6.19999980926514	QSARToolbox	1	0	O=[N+]([O-])c1ccc([NH2+]c2ccc([N+](=O)[O-])cc2)cc1	O=[N+]([O-])c1ccc(Nc2ccc([N+](=O)[O-])cc2)cc1	mol3367	O=[N+]([O-])c1ccc(Nc2ccc([N+](=O)[O-])cc2)cc1