pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.5	Datawarrior	0	-1	Nc1c[nH]nc1[N+](=O)[O-]	Nc1c[n-]nc1[N+](=O)[O-]	mol13583	Nc1c[nH]nc1[N+](=O)[O-]