pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.28	IUPAC digitized pKa	0	-1	Nc1ccc(S(=O)(=O)Nc2cccc(Cl)c2)cc1	Nc1ccc(S(=O)(=O)[N-]c2cccc(Cl)c2)cc1	mol11819	Nc1ccc(S(=O)(=O)Nc2cccc(Cl)c2)cc1