Molecular Formula H2O2, Molecular Weight 34.01, Synonyms oxydol; perhydrol, Hydrogen peroxide (H2O2) is an incredibly ubiquitous oxidant used as a reagent, disinfectant, antiseptic, and propellant. In synthetic chemistry, H2O2 is used for epoxidation and hydroxylation transformations, and is used as the raw oxidant source for generating more complicated and specific organic/inorganic peroxides. H2O2 in aqueous solution is used as a laboratory disinfectant and as a topical antiseptic. The disinfectant, bleaching, and non-toxic properties of H2O2 provide a wide scope of industrial and commercial applications.