pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.19	IUPAC digitized pKa	0	-1	CC(=O)OCCC([N+](=O)[O-])[N+](=O)[O-]	CC(=O)OCC[C-]([N+](=O)[O-])[N+](=O)[O-]	mol9420	CC(=O)OCCC([N+](=O)[O-])[N+](=O)[O-]