pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.08	IUPAC digitized pKa	1	0	O=[N+]([O-])c1ccccc1-n1cc[nH+]c1	O=[N+]([O-])c1ccccc1-n1ccnc1	mol6696	O=[N+]([O-])c1ccccc1-n1ccnc1