pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.62	Organic Oxygen Acids and Nitrogen Bases	0	-1	O=C(O)c1cc([N+](=O)[O-])ccc1[N+](=O)[O-]	O=C([O-])c1cc([N+](=O)[O-])ccc1[N+](=O)[O-]	mol2373	O=C(O)c1cc([N+](=O)[O-])ccc1[N+](=O)[O-]
1.62000000476837	QSARToolbox	0	-1	O=C(O)c1cc([N+](=O)[O-])ccc1[N+](=O)[O-]	O=C([O-])c1cc([N+](=O)[O-])ccc1[N+](=O)[O-]	mol2373	O=C(O)c1cc([N+](=O)[O-])ccc1[N+](=O)[O-]