pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.89	IUPAC digitized pKa	0	-1	O=[N+]([O-])c1ccccc1CC([N+](=O)[O-])[N+](=O)[O-]	O=[N+]([O-])c1ccccc1C[C-]([N+](=O)[O-])[N+](=O)[O-]	mol10586	O=[N+]([O-])c1ccccc1CC([N+](=O)[O-])[N+](=O)[O-]