pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.09	IUPAC digitized pKa	-1	-2	Cc1cc(=O)oc2cc(O)c(CC(=O)[O-])cc12	Cc1cc(=O)oc2cc([O-])c(CC(=O)[O-])cc12	mol11657	Cc1cc(=O)oc2cc(O)c(CC(=O)O)cc12