pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.5	IUPAC digitized pKa	-2	-3	O=S(=O)([O-])c1ccc(O)c2c(S(=O)(=O)[O-])cccc12	O=S(=O)([O-])c1ccc([O-])c2c(S(=O)(=O)[O-])cccc12	mol11315	O=S(=O)(O)c1ccc(O)c2c(S(=O)(=O)O)cccc12