pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.5	OCHEM	0	-1	O=C(O)c1cc(=O)c2ccccc2[nH]1	O=C([O-])c1cc(=O)c2ccccc2[nH]1	mol586	O=C(O)c1cc(=O)c2ccccc2[nH]1