pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9	OCHEM	1	0	O=C(c1ccccc1)n1c(-c2ccccc2[N+](=O)[O-])[nH+]c2ccccc21	O=C(c1ccccc1)n1c(-c2ccccc2[N+](=O)[O-])nc2ccccc21	mol17576	O=C(c1ccccc1)n1c(-c2ccccc2[N+](=O)[O-])nc2ccccc21