pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
0.52	OCHEM	0	-1	O=C(O)CC(Cl)(Cl)Cl	O=C([O-])CC(Cl)(Cl)Cl	mol1808	O=C(O)CC(Cl)(Cl)Cl