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
742724
Dimethyl (1-diazo-2-oxopropyl)phosphonate solution
~10% in acetonitrile (H-NMR), ≥96% (HPLC)
Sinónimos:
Bestmann-Ohira Reagent, Dimethyl (1-azoacetonyl)phosphonate solution, Dimethyl (acetyldiazomethyl)phosphonate solution
About This Item
Productos recomendados
Ensayo
≥96% (HPLC)
Formulario
liquid
idoneidad de la reacción
reaction type: C-C Bond Formation
concentración
~10% in acetonitrile (H-NMR)
índice de refracción
n20/D 1.352-1.354
densidad
0.800-0.850 g/mL at 20 °C
grupo funcional
ketone
phosphonate
temp. de almacenamiento
2-8°C
cadena SMILES
COP(=O)(OC)C(=[N+]=[N-])C(C)=O
InChI
1S/C5H9N2O4P/c1-4(8)5(7-6)12(9,10-2)11-3/h1-3H3
Clave InChI
SQHSJJGGWYIFCD-UHFFFAOYSA-N
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Categorías relacionadas
Aplicación
- Ethynyl compounds (alkynes) from aldehydes.[1]
- Isoquinoline and pyridine N-oxides by cyclization with oximes in the presence of Rh catalyst.[2]
- Dimethyl(diazomethyl)phosphonate through methanolysis, which is further employed as a reagent in the synthesis of enol ethers or alkynes.[3]
- Five-member heterocyclic scaffolds of pyrazoles, triazoles, and oxazoles via cycloaddition reaction and multicomponent reaction.[4]
Palabra de señalización
Danger
Frases de peligro
Clasificaciones de peligro
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2
Código de clase de almacenamiento
3 - Flammable liquids
Clase de riesgo para el agua (WGK)
WGK 3
Punto de inflamabilidad (°F)
35.6 °F
Punto de inflamabilidad (°C)
2 °C
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Protocolos
Acetylene chemistry's versatile applications from organic synthesis to bioorganic chemistry demand efficient synthesis methods.
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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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