pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.93	IUPAC digitized pKa	0	-1	CC1=C([C@@H]2C(=O)C=C(O)C(=O)[C@@H]2C)C(=O)C=C(O)C1=O	CC1=C([C@@H]2C(=O)C=C([O-])C(=O)[C@@H]2C)C(=O)C=C(O)C1=O,CC1=C([C@@H]2C(=O)C=C(O)C(=O)[C@@H]2C)C(=O)C=C([O-])C1=O	mol11934	CC1=C(C2C(=O)C=C(O)C(=O)C2C)C(=O)C=C(O)C1=O
4.79	IUPAC digitized pKa	-1	-2	CC1=C([C@@H]2C(=O)C=C([O-])C(=O)[C@@H]2C)C(=O)C=C(O)C1=O,CC1=C([C@@H]2C(=O)C=C(O)C(=O)[C@@H]2C)C(=O)C=C([O-])C1=O	CC1=C([C@@H]2C(=O)C=C([O-])C(=O)[C@@H]2C)C(=O)C=C([O-])C1=O	mol11934	CC1=C(C2C(=O)C=C(O)C(=O)C2C)C(=O)C=C(O)C1=O