pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.85	IUPAC digitized pKa	-1	-2	O=Nc1c(O)cc(S(=O)(=O)O)c2cn[n-]c12,O=Nc1c([O-])cc(S(=O)(=O)O)c2cn[nH]c12,O=Nc1c(O)cc(S(=O)(=O)[O-])c2cn[nH]c12	O=Nc1c([O-])cc(S(=O)(=O)[O-])c2cn[nH]c12,O=Nc1c(O)cc(S(=O)(=O)[O-])c2cn[n-]c12	mol10301	O=Nc1c(O)cc(S(=O)(=O)O)c2cn[nH]c12