pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.13	IUPAC digitized pKa	0	-1	O=C(O)c1ccccc1C1CC1	O=C([O-])c1ccccc1C1CC1	mol11193	O=C(O)c1ccccc1C1CC1