SEARCH Articles Figures Tables Hydrogen peroxide/Urea—Phthalic anhydride Methyltrioxorhenium -urea-hydrogen peroxide Oxidants urea-hydrogen peroxide Oxidants urea/H2O2 peroxide Oxidation urea-hydrogen peroxide complex Urea hydrogen peroxide Urea ■ hydrogen peroxide adduct Urea-hydrogen peroxide , oxidation Urea-hydrogen peroxide complex Urea-hydrogen peroxide transition metal peroxides