pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-1.0	IUPAC digitized pKa	1	0	C[NH+](C)c1ccc([N+](=O)[O-])cc1[N+](=O)[O-]	CN(C)c1ccc([N+](=O)[O-])cc1[N+](=O)[O-]	mol1033	CN(C)c1ccc([N+](=O)[O-])cc1[N+](=O)[O-]