pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.47	AttenGpKa training set	0	-1	N=C(N[N+](=O)[O-])n1cncn1	N=C([N-][N+](=O)[O-])n1cncn1	mol28032	N=C(N[N+](=O)[O-])n1cncn1