pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.05	IUPAC digitized pKa	0	-1	O=C(O)c1ccc(O)c(=O)cc1	O=C([O-])c1ccc(O)c(=O)cc1	mol10393	O=C(O)c1ccc(O)c(=O)cc1
6.41	IUPAC digitized pKa	-1	-2	O=C([O-])c1ccc(O)c(=O)cc1	O=C([O-])c1ccc([O-])c(=O)cc1	mol10393	O=C(O)c1ccc(O)c(=O)cc1