pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.7	IUPAC digitized pKa	0	-1	Nc1nc(=O)c([N+](=O)[O-])c[nH]1	Nc1nc(=O)c([N+](=O)[O-])c[n-]1	mol9148	Nc1nc(=O)c([N+](=O)[O-])c[nH]1