pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.23	IUPAC digitized pKa	0	-1	CNC(=O)NCCC([N+](=O)[O-])[N+](=O)[O-]	CNC(=O)NCC[C-]([N+](=O)[O-])[N+](=O)[O-]	mol9439	CNC(=O)NCCC([N+](=O)[O-])[N+](=O)[O-]