pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.4	IUPAC digitized pKa	1	0	COc1ccc(-c2nccc[nH+]2)cc1[N+](=O)[O-]	COc1ccc(-c2ncccn2)cc1[N+](=O)[O-]	mol7493	COc1ccc(-c2ncccn2)cc1[N+](=O)[O-]