pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.6	OCHEM	1	0	Cn1c[nH+]c2cc([N+](=O)[O-])c([N+](=O)[O-])cc21	Cn1cnc2cc([N+](=O)[O-])c([N+](=O)[O-])cc21	mol21433	Cn1cnc2cc([N+](=O)[O-])c([N+](=O)[O-])cc21