tert-Butyl hydroperoxide (tBuOOH) is the organic compound with the formula (CH)COOH. It is one of the most widely used hydroperoxides in a variety of oxidation processes, like the Halcon process.  It is normally supplied as a 69–70% aqueous solution.  Compared to hydrogen peroxide and organic peracids, tert-butyl hydroperoxide is less reactive and more soluble in organic solvents. Overall, it is renowned for the convenient handling properties of its solutions. Its solutions in organic solvents are highly stable.