pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.0	OCHEM	1	0	NC(=O)c1ccc[nH+]n1,NC(=O)c1cccn[nH+]1	NC(=O)c1cccnn1	mol4020	NC(=O)c1cccnn1