pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.23	IUPAC digitized pKa	0	-1	C[C@@H]1CCC=C(O)C1=O	C[C@@H]1CCC=C([O-])C1=O,C[C@@H]1C[CH-]C=C(O)C1=O	mol9982	CC1CCC=C(O)C1=O