pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.3	IUPAC digitized pKa	0	-1	NC(=O)c1cccc(O)c1	NC(=O)c1cccc([O-])c1	mol10139	NC(=O)c1cccc(O)c1