pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.3	IUPAC digitized pKa	0	-1	O=C(Nc1ccc([N+](=O)[O-])cc1)Oc1ccc(Cl)cc1	O=C([N-]c1ccc([N+](=O)[O-])cc1)Oc1ccc(Cl)cc1	mol11909	O=C(Nc1ccc([N+](=O)[O-])cc1)Oc1ccc(Cl)cc1