pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.19	IUPAC digitized pKa	0	-1	Cc1c(C#N)c(O)nc2c1CCO2	Cc1c(C#N)c([O-])nc2c1CCO2	mol7809	Cc1c(C#N)c(O)nc2c1CCO2