pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-1.48	IUPAC digitized pKa	1	0	[NH3+]c1cc(Br)ccc1[N+](=O)[O-]	Nc1cc(Br)ccc1[N+](=O)[O-]	mol2205	Nc1cc(Br)ccc1[N+](=O)[O-]
-1.48000001907349	QSARToolbox	1	0	[NH3+]c1cc(Br)ccc1[N+](=O)[O-]	Nc1cc(Br)ccc1[N+](=O)[O-]	mol2205	Nc1cc(Br)ccc1[N+](=O)[O-]