pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.5	IUPAC digitized pKa	0	-1	COc1nc2c(nc1C(=O)O)c(=O)n(C)c(=O)n2C	COc1nc2c(nc1C(=O)[O-])c(=O)n(C)c(=O)n2C	mol11355	COc1nc2c(nc1C(=O)O)c(=O)n(C)c(=O)n2C