pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.22	IUPAC digitized pKa	0	-1	Cc1nc2c(=O)n(C)c(O)nc2n(C)c1=O	Cc1nc2c(=O)n(C)c([O-])nc2n(C)c1=O	mol8228	Cc1nc2c(=O)n(C)c(O)nc2n(C)c1=O