pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.75	IUPAC digitized pKa	0	-1	NC(=O)CCCC([N+](=O)[O-])[N+](=O)[O-]	NC(=O)CCC[C-]([N+](=O)[O-])[N+](=O)[O-]	mol9437	NC(=O)CCCC([N+](=O)[O-])[N+](=O)[O-]