Most reagents play a single role in chemical reactions of various types. Ce
ric ammonium nitrate is an orange solid and commercially available. It has
been widely used in industry and academia during the past six decades. In t
his review, the role, efficiency, and advantages of ceric ammonium nitrate
are discussed for its use with versatile roles in different chemical transf
ormations. These reactions include carbon-carbon bond formation, oxidative
carbon-carbon bond cleavage, nitration, and removal of protecting groups. T
he information will be of value to chemical synthesis of new compounds and
materials.