pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.83	IUPAC digitized pKa	0	-1	O=C(O)c1nc2ccccc2nc1Cl	O=C([O-])c1nc2ccccc2nc1Cl	mol11108	O=C(O)c1nc2ccccc2nc1Cl