pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.94	IUPAC digitized pKa	0	-1	Oc1ccc2ccccc2c1N=Nc1nccs1	[O-]c1ccc2ccccc2c1N=Nc1nccs1	mol11897	Oc1ccc2ccccc2c1N=Nc1nccs1