pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-4.31	IUPAC digitized pKa	1	0	c1ccc(-c2cc3cccc-3o[nH+]2)cc1	c1ccc(-c2cc3cccc-3on2)cc1	mol7792	c1ccc(-c2cc3cccc-3on2)cc1