pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.13	IUPAC digitized pKa	0	-1	CCOC(=O)CC(=O)c1ccc([N+](=O)[O-])cc1	CCOC(=O)[CH-]C(=O)c1ccc([N+](=O)[O-])cc1	mol11573	CCOC(=O)CC(=O)c1ccc([N+](=O)[O-])cc1