pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.55	IUPAC digitized pKa	1	0	Cc1[nH+]cc([N+](=O)[O-])n1CCO	Cc1ncc([N+](=O)[O-])n1CCO	mol1961	Cc1ncc([N+](=O)[O-])n1CCO
2.51	OCHEM	1	0	Cc1[nH+]cc([N+](=O)[O-])n1CCO	Cc1ncc([N+](=O)[O-])n1CCO	mol1961	Cc1ncc([N+](=O)[O-])n1CCO