pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.27	IUPAC digitized pKa	0	-1	O=Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O	O=Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1[O-]	mol10051	O=Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O
2.09	IUPAC digitized pKa	0	-1	O=Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O	O=Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1[O-]	mol10051	O=Cc1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O