pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.94	IUPAC digitized pKa	1	0	C[NH+](c1cccnc1)S(C)(=O)=O,CN(c1ccc[nH+]c1)S(C)(=O)=O	CN(c1cccnc1)S(C)(=O)=O	mol3753	CN(c1cccnc1)S(C)(=O)=O