pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
14.91	IUPAC digitized pKa	-1	-2	O=C([O-])c1cc2cc([N+](=O)[O-])ccc2[nH]1	O=C([O-])c1cc2cc([N+](=O)[O-])ccc2[n-]1	mol10938	O=C(O)c1cc2cc([N+](=O)[O-])ccc2[nH]1