pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.4	IUPAC digitized pKa	0	-1	COc1ccc(O)c(C#N)c1	COc1ccc([O-])c(C#N)c1	mol10520	COc1ccc(O)c(C#N)c1