pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-2.6	IUPAC digitized pKa	1	0	O=[N+]([O-])c1ccc[nH+]c1Cl	O=[N+]([O-])c1cccnc1Cl	mol3653	O=[N+]([O-])c1cccnc1Cl
-2.59999990463257	QSARToolbox	1	0	O=[N+]([O-])c1ccc[nH+]c1Cl	O=[N+]([O-])c1cccnc1Cl	mol3653	O=[N+]([O-])c1cccnc1Cl