6-Oxo-octanoic acid

5-Oxo-heptanoic acid

5-Oxodecanoic acid

8-oxoundecanoic acid

4-(1-Oxo-2-phenylethyl)benzoic acid

2-(2-Oxopropyl)benzoic acid

4-(3-Bromo-4-methylphenyl)-4-oxobutyric acid

5-Methyl-4-oxohexanoic acid

6-Methyl-5-oxoheptanoic acid

5-(2-iodophenyl)-5-oxovaleric acid

4-(3-Iodophenyl)-4-oxobutyric acid