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Merck

135364

Sigma-Aldrich

Diethyl oxalate

≥99%

Sinónimos:

Diethyl ethanedioate, Ethyl oxalate

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About This Item

Fórmula lineal:
C2H5OCOCOOC2H5
Número de CAS:
Peso molecular:
146.14
Beilstein:
606350
Número CE:
Número MDL:
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
NACRES:
NA.22
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densidad de vapor

5.03 (vs air)

Nivel de calidad

presión de vapor

1 mmHg ( 47 °C)

Ensayo

≥99%

Formulario

liquid

índice de refracción

n20/D 1.410 (lit.)

bp

185 °C (lit.)

mp

−41 °C (lit.)

solubilidad

alcohol: miscible
diethyl ether: miscible
organic solvents: miscible
water: partially soluble

densidad

1.076 g/mL at 25 °C (lit.)

grupo funcional

ester

cadena SMILES

CCOC(=O)C(=O)OCC

InChI

1S/C6H10O4/c1-3-9-5(7)6(8)10-4-2/h3-4H2,1-2H3

Clave InChI

WYACBZDAHNBPPB-UHFFFAOYSA-N

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Descripción general

Diethyl oxalate undergoes transesterification with phenol in the liquid phase over very efficient MoO3/TiO2 solid-acid sol-gel catalysts to form diphenyl oxalate[1]. It undergoes Claisen condensation with active methylene group of ketosteroids to form glyoxalyl derivatives[2]. It undergoes hydrogenation in the presence of high copper contented mesoporous Cu/SBA-15 catalysts to yield ethylene glycol[3].

Aplicación

Diethyl oxalate was used in microemulsion synthesis of ZnO nanoparticles[4]. It was also used in the synthesis of sym-1,4-diphenyl-1,4-dihydro-1,2,4,5-polytetrazine[5].

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2 Oral

Órganos de actuación

Kidney

Código de clase de almacenamiento

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

167.0 °F - closed cup

Punto de inflamabilidad (°C)

75 °C - closed cup

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Visite la Librería de documentos

Comparison of two novel solution-based routes for the synthesis of equiaxed ZnO nanoparticles.
Elen K, et al.
Journal of Nanomaterials, 2011, 18-18 (2011)
W W Monafo et al.
Surgery, 80(4), 465-473 (1976-10-01)
The wounds of 60 burned patients were treated topically with cerium nitrate, which was applied either as a cream or in aqueous solution. Cerium nitrate has a potent antiseptic effect in human burn wounds, especially against gram negative bacteria and
Novel macromolecules containing sym-tetrazine rings and their subsequent reactions through click modifications.
Sayed RA and Wiggins JS.
Polymer Preprints (American Chemical Society, Division of Polymer Chemistry), 49(1), 188-188 (2008)
Diethyl oxalate as new reagent for spectrophotometric determination of ketosteroids.
S Görög
Analytical chemistry, 42(6), 560-563 (1970-05-01)
One pot synthesis of ultra-high copper contented Cu/SBA-15 material as excellent catalyst in the hydrogenation of dimethyl oxalate to ethylene glycol.
Guo X, et al.
Catalysis Letters, 132(1-2), 22-27 (2009)

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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