pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-0.27	IUPAC digitized pKa	1	0	C[S@+]([O-])c1ccc2ccccc2[nH+]1	C[S@+]([O-])c1ccc2ccccc2n1	mol7768	C[S+]([O-])c1ccc2ccccc2n1