pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.90000009536743	QSARToolbox	0	-1	COc1ccc(/C=C/C(=O)c2c(O)cc(OC)cc2O)cc1	COc1ccc(/C=C/C(=O)c2c([O-])cc(OC)cc2O)cc1	mol34621	COc1ccc(/C=C/C(=O)c2c(O)cc(OC)cc2O)cc1