pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-3.0	AttenGpKa training set	1	0	Cn1cnn[nH+]1,Cn1c[nH+]nn1,Cn1cn[nH+]n1	Cn1cnnn1	mol25216	Cn1cnnn1