pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.89	IUPAC digitized pKa	0	-1	[O-][n+]1c(O)ccc2ccccc21,[O-]c1ccc2ccccc2[n+]1O	[O-]c1ccc2ccccc2[n+]1[O-]	mol4476	[O-][n+]1c(O)ccc2ccccc21