Cumene hydroperoxide is an intermediate in the cumene process. Its formula is C6H5C(CH3)2OOH.

An antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent.

Tert-butyl hydroperoxide is an organic peroxide widely used in a variety of oxidation processes, for example sharpless epoxidation. It is normally supplied as a 69-70% aqueous solution.