pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.31	IUPAC digitized pKa	0	-1	O=C([O-])Cn1ccc[nH+]1,O=C(O)Cn1cccn1	O=C([O-])Cn1cccn1	mol9370	O=C(O)Cn1cccn1