pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.28	IUPAC digitized pKa	0	-1	CCOC(=O)c1cc(=O)cc(C(=O)O)o1	CCOC(=O)c1cc(=O)cc(C(=O)[O-])o1	mol10857	CCOC(=O)c1cc(=O)cc(C(=O)O)o1