pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.64	IUPAC digitized pKa	0	-1	O=C(O)C1=C(C(=O)O)CC=CC1	O=C([O-])C1=C(C(=O)O)CC=CC1	mol10417	O=C(O)C1=C(C(=O)O)CC=CC1
4.9	IUPAC digitized pKa	-1	-2	O=C([O-])C1=C(C(=O)O)CC=CC1	O=C([O-])C1=C(C(=O)[O-])CC=CC1	mol10417	O=C(O)C1=C(C(=O)O)CC=CC1