pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.12	IUPAC digitized pKa	0	-1	O=[N+]([O-])c1c[nH]c2ccccc12	O=[N+]([O-])c1c[n-]c2ccccc12	mol10496	O=[N+]([O-])c1c[nH]c2ccccc12