pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.8	AttenGpKa training set	0	-1	O=C(O)N1C=NN(C(=O)O)C=N1	O=C([O-])N1C=NN(C(=O)O)C=N1	mol25781	O=C(O)N1C=NN(C(=O)O)C=N1