pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.59	IUPAC digitized pKa	0	-1	O=[N+]([O-])c1ccc(S)nc1	O=[N+]([O-])c1ccc([S-])nc1	mol6512	O=[N+]([O-])c1ccc(S)nc1
6.59000015258789	QSARToolbox	0	-1	O=[N+]([O-])c1ccc(S)nc1	O=[N+]([O-])c1ccc([S-])nc1	mol6512	O=[N+]([O-])c1ccc(S)nc1
-3.0	QSARToolbox	1	0	O=[N+]([O-])c1ccc(S)[nH+]c1	O=[N+]([O-])c1ccc(S)nc1	mol6512	O=[N+]([O-])c1ccc(S)nc1