pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.14	IUPAC digitized pKa	1	0	C[NH+](c1ccncc1)S(C)(=O)=O,CN(c1cc[nH+]cc1)S(C)(=O)=O	CN(c1ccncc1)S(C)(=O)=O	mol3754	CN(c1ccncc1)S(C)(=O)=O