pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.9	IUPAC digitized pKa	0	-1	O=C1C=CC(=Nc2c(Cl)cc(O)cc2Cl)C=C1	O=C1C=CC(=Nc2c(Cl)cc([O-])cc2Cl)C=C1	mol11755	O=C1C=CC(=Nc2c(Cl)cc(O)cc2Cl)C=C1