pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.69	IUPAC digitized pKa	0	-1	Nc1cc(S(=O)(=O)O)nc(N)n1,Nc1cc(S(=O)(=O)[O-])[nH+]c(N)n1,Nc1cc(S(=O)(=O)[O-])nc([NH3+])n1,Nc1nc([NH3+])cc(S(=O)(=O)[O-])n1	Nc1cc(S(=O)(=O)[O-])nc(N)n1	mol7317	Nc1cc(S(=O)(=O)O)nc(N)n1