pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.24	IUPAC digitized pKa	0	-1	O=[N+]([O-])CCC([N+](=O)[O-])[N+](=O)[O-]	O=[N+]([O-])CC[C-]([N+](=O)[O-])[N+](=O)[O-]	mol9040	O=[N+]([O-])CCC([N+](=O)[O-])[N+](=O)[O-]
3.37	IUPAC digitized pKa	0	-1	O=[N+]([O-])CCC([N+](=O)[O-])[N+](=O)[O-]	O=[N+]([O-])CC[C-]([N+](=O)[O-])[N+](=O)[O-]	mol9040	O=[N+]([O-])CCC([N+](=O)[O-])[N+](=O)[O-]