pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.43	IUPAC digitized pKa	0	-1	NNc1cccc(S(=O)(=O)O)c1,N[NH2+]c1cccc(S(=O)(=O)[O-])c1,[NH3+]Nc1cccc(S(=O)(=O)[O-])c1	NNc1cccc(S(=O)(=O)[O-])c1	mol8883	NNc1cccc(S(=O)(=O)O)c1
2.4300000667572	QSARToolbox	0	-1	NNc1cccc(S(=O)(=O)O)c1,N[NH2+]c1cccc(S(=O)(=O)[O-])c1,[NH3+]Nc1cccc(S(=O)(=O)[O-])c1	NNc1cccc(S(=O)(=O)[O-])c1	mol8883	NNc1cccc(S(=O)(=O)O)c1