pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.73	IUPAC digitized pKa	0	-1	O=C(O)c1cccccc1=O	O=C([O-])c1cccccc1=O	mol10390	O=C(O)c1cccccc1=O