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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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$56.40
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$128.00
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5 G
$43.70
100 G
$56.40
250 G
$128.00
500 G
$200.00

About This Item

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

$43.70

In StockDetails

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vapor pressure

23.3 mmHg ( 30 °C)

Quality Level

200

assay

97%

form

solid

reaction suitability

reagent type: oxidant

mp

90-93 °C (lit.)

functional group

amine

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.[1]

Application

Urea hydrogen peroxide can be used as an oxidizing agent:
  • In the conversion of sulfides to sulfoxides or sulfones under solvent free condition.[1]
  • In the conversion of nitrogen heterocycles to their corresponding N-oxides.[1]
  • In the epoxidation of various alkene in combination with number of carboxylic anhydrides and disodium hydrogen phosphate in anhydrous organic solvents.[2]
  • In the Baeyer–Villiger oxidation reaction where in aldehydes and ketones undergo oxidation to produce esters and lactones using various peroxycarboxylic acids.[2]

Features and Benefits

UHP is:
  • Inexpensive.
  • Stable.
  • Easy handling reagent.[1]

pictograms

Flame over circleCorrosion
GHS03,GHS05

signalword

Danger

Hazard Classifications

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

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL3491
BCCM5917
BCCK3729
BCCH1942
BCCH9061

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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
Synthetic Communications, 37, 87-87 (2007)
Hydrogen Peroxide?Urea
Harry H, et al.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2013)
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
View All Related Papers

Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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