pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.5	Datawarrior	0	-1	Nc1ccc(S(=O)(=O)Nc2ncco2)cc1	Nc1ccc(S(=O)(=O)[N-]c2ncco2)cc1	mol14608	Nc1ccc(S(=O)(=O)Nc2ncco2)cc1