pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.75	IUPAC digitized pKa	0	-1	COC(=O)c1cocc1C(=O)O	COC(=O)c1cocc1C(=O)[O-]	mol9961	COC(=O)c1cocc1C(=O)O