pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.05	OCHEM	0	-1	O=C(O)/C=C/c1ccc([N+](=O)[O-])cc1	O=C([O-])/C=C/c1ccc([N+](=O)[O-])cc1	mol23394	O=C(O)/C=C/c1ccc([N+](=O)[O-])cc1