pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.29	OCHEM	0	-1	O=C(O)/C=C/c1cccc(Cl)c1	O=C([O-])/C=C/c1cccc(Cl)c1	mol1264	O=C(O)/C=C/c1cccc(Cl)c1
4.8	Baltruschat ChEMBL	0	-1	O=C(O)/C=C/c1cccc(Cl)c1	O=C([O-])/C=C/c1cccc(Cl)c1	mol1264	O=C(O)/C=C/c1cccc(Cl)c1