pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-2.03	AttenGpKa training set	0	-1	O=S(=O)(O)Nc1ccccc1	O=S(=O)([O-])Nc1ccccc1	mol28321	O=S(=O)(O)Nc1ccccc1