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Sigma-Aldrich

Urea hydrogen peroxide

97%

Synonym(s):

Hydrogen peroxide–Urea adduct, Carbamide Per hydrate, Carbamide peroxide, Percarbamide, Urea hydrogen peroxide

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About This Item

Linear Formula:
CO(NH2)2 · H2O2
CAS Number:
124-43-6
Molecular Weight:
94.07
Beilstein:
3680414
EC Number:
204-701-4
MDL number:
MFCD00013119
UNSPSC Code:
12352111
PubChem Substance ID:
24857388
NACRES:
NA.22

vapor pressure

23.3 mmHg ( 30 °C)

Quality Level

200

Assay

97%

form

solid

reaction suitability

reagent type: oxidant

mp

90-93 °C (lit.)

storage temp.

2-8°C

SMILES string

OO.NC(N)=O

InChI

1S/CH4N2O.H2O2/c2-1(3)4;1-2/h(H4,2,3,4);1-2H

InChI key

AQLJVWUFPCUVLO-UHFFFAOYSA-N

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General description

Urea hydrogen peroxide (UHP) is an oxidizing agent consisting of urea and hydrogen peroxide. In the presence of carboxylic anhydrides, UHP is employed in a variety of oxidative conversions in anhydrous organic solvents. UHP is used as a hydrogen peroxide source in the oxidation reaction.

Application

Urea hydrogen peroxide can be used as an oxidizing agent:
  • In the conversion of sulfides to sulfoxides or sulfones under solvent free condition.
  • In the conversion of nitrogen heterocycles to their corresponding N-oxides.
  • In the epoxidation of various alkene in combination with number of carboxylic anhydrides and disodium hydrogen phosphate in anhydrous organic solvents.
  • In the Baeyer–Villiger oxidation reaction where in aldehydes and ketones undergo oxidation to produce esters and lactones using various peroxycarboxylic acids.

Features and Benefits

UHP is:
  • Inexpensive.
  • Stable.
  • Easy handling reagent.

Pictograms

Flame over circleCorrosion
GHS03,GHS05

Signal Word

Danger

Hazard Statements

H272,H315,H318

Hazard Classifications

Eye Dam. 1 - Ox. Sol. 3 - Skin Irrit. 2

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Hydrogen Peroxide?Urea
Harry H, et al.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2013)
The Urea?Hydrogen Peroxide Complex:? Solid-State Oxidative Protocols for Hydroxylated Aldehydes and Ketones (Dakin Reaction), Nitriles, Sulfides, and Nitrogen Heterocycles
Rajender SV, et al.
Organic Letters, 1(2), 189?192-189?192 (1999)
Jiaolong Qin et al.
Journal of hazardous materials, 396, 122762-122762 (2020-05-04)
Reducing the emissions of soil fumigants such as 1,3-dichloropropene (1,3-D) is essential to protecting air quality. Although biochar is useful in reducing such emissions, biochar-adsorbed fumigants may desorb and cause secondary air pollution. This study investigated the degradation of 1,3-D
Gianluca Soldaini et al.
Organic letters, 9(3), 473-476 (2007-01-26)
[reaction: see text] The first successful catalytic oxidation procedure for the chemoselective conversion of imines to nitrones is reported. The reaction is general, high yielding, and user and environmentally friendly, and furnishes a solution to the yet unanswered issue of
Synthesis, 3153-3153 (2006)
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