pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.17	IUPAC digitized pKa	0	-1	O=C1c2ccccc2C(=O)N1CC([N+](=O)[O-])[N+](=O)[O-]	O=C1c2ccccc2C(=O)N1C[C-]([N+](=O)[O-])[N+](=O)[O-]	mol11295	O=C1c2ccccc2C(=O)N1CC([N+](=O)[O-])[N+](=O)[O-]