pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.95	AttenGpKa training set	0	-1	C=CCN[N+](=O)[O-]	C=CC[N-][N+](=O)[O-]	mol27829	C=CCN[N+](=O)[O-]