pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.53	IUPAC digitized pKa	0	-1	COc1coc(C(=O)O)cc1=O	COc1coc(C(=O)[O-])cc1=O	mol9962	COc1coc(C(=O)O)cc1=O