pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.11999988555908	QSARToolbox	0	-1	O=NN(O)c1ccccc1	O=NN([O-])c1ccccc1	mol33777	O=NN(O)c1ccccc1
4.15999984741211	QSARToolbox	0	-1	O=NN(O)c1ccccc1	O=NN([O-])c1ccccc1	mol33777	O=NN(O)c1ccccc1