pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.03	IUPAC digitized pKa	0	-1	COc1cc(C=C[N+](=O)[O-])ccc1O	COc1cc(C=C[N+](=O)[O-])ccc1[O-]	mol10991	COc1cc(C=C[N+](=O)[O-])ccc1O