pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.09	IUPAC digitized pKa	0	-1	O=[N+]([O-])c1cc(O)cc2ccccc12	O=[N+]([O-])c1cc([O-])cc2ccccc12	mol11291	O=[N+]([O-])c1cc(O)cc2ccccc12
8.89999961853027	QSARToolbox	0	-1	O=[N+]([O-])c1cc(O)cc2ccccc12	O=[N+]([O-])c1cc([O-])cc2ccccc12	mol11291	O=[N+]([O-])c1cc(O)cc2ccccc12