pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.19	IUPAC digitized pKa	0	-1	COC(=O)C1=C(C(=O)O)CC1	COC(=O)C1=C(C(=O)[O-])CC1	mol9974	COC(=O)C1=C(C(=O)O)CC1