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/418/501/product-dating-information-06-25-mk.pdf
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D99234
Diethyl phosphite
98%
Synonim(y):
Diethoxyphosphine oxide, Diethyl acid phosphite, Diethyl hydrogen phosphite, Diethyl phosphonate, Hydrogen diethyl phosphite
Wybierz wielkość
| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
250 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 390,00 zł |
Informacje o tej pozycji
390,00 zł
Quality Segment
assay
98%
form
liquid
refractive index
n20/D 1.407 (lit.)
bp
50-51 °C/2 mmHg (lit.)
density
1.072 g/mL at 25 °C (lit.)
SMILES string
[H]P(=O)(OCC)OCC
InChI
1S/C4H11O3P/c1-3-6-8(5)7-4-2/h8H,3-4H2,1-2H3
InChI key
MJUJXFBTEFXVKU-UHFFFAOYSA-N
General description
Application
- It can undergo condensation with aldehydes or ketones and an amine to form α-aminophosphonates under solvent-free and catalyst-free conditions.
- Reduction of gem-dibromo derivatives using diethyl phosphite in the presence of triethylamine gives monobromocyclopropanes.
- Along with 4-dimethylaminopyridine, it can be used as a ligand for nickel-catalyzed cross-coupling of aryl and heteroaryl bromides, chlorides or sulfonates with arylzinc reagents.
- It can be used for the catalytic asymmetric hydrophosphonylation of enones in the presence of a dinuclear zinc complex to form γ-oxo-phosphonates.
- DEP can undergo Michael addition to α,β-unsaturated malonates to form β-phosphonomalonates in the presence of recyclable nano γ-ferric oxide-pyridine based catalyst.
1 of 1
Ta pozycja | |||
|---|---|---|---|
| description 98% | description technical grade, 94% | description 98% | description 95% |
| assay 98% | assay 94% | assay 98% | assay 95% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| density 1.072 g/mL at 25 °C (lit.) | density 1.072 g/mL at 25 °C (lit.) | density 1.2 g/mL at 25 °C (lit.) | density 1.089 g/mL at 20 °C (lit.) |
| form liquid | form liquid | form liquid | form liquid |
| bp 50-51 °C/2 mmHg (lit.) | bp 50-51 °C/2 mmHg (lit.) | bp 170-171 °C (lit.) | bp 153-155 °C (lit.), 56-57.5 °C/30 mmHg (lit.) |
| refractive index n20/D 1.407 (lit.) | refractive index n20/D 1.407 (lit.) | refractive index n20/D 1.402 (lit.) | refractive index n20/D 1.434 (lit.) |
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Słowo ostrzegawcze
Danger
Kody zagrożeń
Hazard Classifications
Eye Dam. 1 - Skin Sens. 1B
Klasa składowania
10 - Combustible liquids
Temperatura zapłonu (°F)
179.6 °F - closed cup
Temperatura zapłonu (°C)
82 °C - closed cup
PPE (środki ochrony indywidualnej)
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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