pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.71999979019165	QSARToolbox	-1	-2	O=Cc1cc(S(=O)(=O)[O-])ccc1O	O=Cc1cc(S(=O)(=O)[O-])ccc1[O-]	mol30642	O=Cc1cc(S(=O)(=O)O)ccc1O
6.83	AttenGpKa training set	-1	-2	O=Cc1cc(S(=O)(=O)[O-])ccc1O	O=Cc1cc(S(=O)(=O)[O-])ccc1[O-]	mol30642	O=Cc1cc(S(=O)(=O)O)ccc1O