pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.75	IUPAC digitized pKa	0	-1	O=c1c(O)cocc1CO	O=c1c([O-])cocc1CO	mol9543	O=c1c(O)cocc1CO