pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.32	OCHEM	0	-1	O=[N+]([O-])c1ccc2[nH]nnc2c1	O=[N+]([O-])c1ccc2[n-]nnc2c1	mol26432	O=[N+]([O-])c1ccc2[nH]nnc2c1