pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
0.64	IUPAC digitized pKa	1	0	[NH3+]c1cc([N+](=O)[O-])ccc1Cl	Nc1cc([N+](=O)[O-])ccc1Cl	mol1658	Nc1cc([N+](=O)[O-])ccc1Cl
0.639999985694885	QSARToolbox	1	0	[NH3+]c1cc([N+](=O)[O-])ccc1Cl	Nc1cc([N+](=O)[O-])ccc1Cl	mol1658	Nc1cc([N+](=O)[O-])ccc1Cl