pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.48	IUPAC digitized pKa	0	-1	O=C(O)C(Br)Br	O=C([O-])C(Br)Br	mol1759	O=C(O)C(Br)Br
1.39	OCHEM	0	-1	O=C(O)C(Br)Br	O=C([O-])C(Br)Br	mol1759	O=C(O)C(Br)Br
1.48000001907349	QSARToolbox	0	-1	O=C(O)C(Br)Br	O=C([O-])C(Br)Br	mol1759	O=C(O)C(Br)Br