pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.35	IUPAC digitized pKa	-1	-2	O=Nc1cc(S(=O)(=O)[O-])c2cn[nH]c2c1O,O=Nc1cc(S(=O)(=O)O)c2cn[nH]c2c1[O-],O=Nc1cc(S(=O)(=O)O)c2cn[n-]c2c1O	O=Nc1cc(S(=O)(=O)[O-])c2cn[nH]c2c1[O-]	mol10302	O=Nc1cc(S(=O)(=O)O)c2cn[nH]c2c1O