pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.0	IUPAC digitized pKa	1	0	NS(=O)(=O)c1ccccc1[NH3+],Nc1ccccc1S([NH3+])(=O)=O	Nc1ccccc1S(N)(=O)=O	mol3374	Nc1ccccc1S(N)(=O)=O