pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.62	SAMPL7	0	-1	O=S(=O)(Nc1cc(-c2ccccc2)on1)c1ccccc1	O=S(=O)([N-]c1cc(-c2ccccc2)on1)c1ccccc1	SM42	O=S(=O)(Nc1cc(-c2ccccc2)on1)c1ccccc1