pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.86	IUPAC digitized pKa	1	0	Cn1c[nH+]c2c([N+](=O)[O-])cccc21	Cn1cnc2c([N+](=O)[O-])cccc21	mol4528	Cn1cnc2c([N+](=O)[O-])cccc21