pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.04	IUPAC digitized pKa	0	-1	C=C(C)c1ccc(C(=O)O)cc1	C=C(C)c1ccc(C(=O)[O-])cc1	mol11195	C=C(C)c1ccc(C(=O)O)cc1