pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.5	Organic Oxygen Acids and Nitrogen Bases	0	-1	O=C(O)c1c(Cl)ccc(Cl)c1Cl	O=C([O-])c1c(Cl)ccc(Cl)c1Cl	mol2263	O=C(O)c1c(Cl)ccc(Cl)c1Cl