pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.11	IUPAC digitized pKa	0	-1	NC(=O)c1cc(N)ccc1O	NC(=O)c1cc(N)ccc1[O-]	mol10176	NC(=O)c1cc(N)ccc1O