pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.43	IUPAC digitized pKa	1	0	O=[N+]([O-])c1cccc2c1[C@H](O)NC=[NH+]2	O=[N+]([O-])c1cccc2c1[C@H](O)NC=N2	mol7882	O=[N+]([O-])c1cccc2c1C(O)NC=N2