pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.89	IUPAC digitized pKa	0	-1	O=[N+]([O-])c1ccc2ccccc2c1O	O=[N+]([O-])c1ccc2ccccc2c1[O-]	mol11287	O=[N+]([O-])c1ccc2ccccc2c1O
5.8899998664856	QSARToolbox	0	-1	O=[N+]([O-])c1ccc2ccccc2c1O	O=[N+]([O-])c1ccc2ccccc2c1[O-]	mol11287	O=[N+]([O-])c1ccc2ccccc2c1O