pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-2.45	IUPAC digitized pKa	1	0	Cc1cc(-c2ccccc2)o[nH+]1	Cc1cc(-c2ccccc2)on1	mol6734	Cc1cc(-c2ccccc2)on1