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Merck

D178454

Sigma-Aldrich

Dimethyl phosphite

98%

Synonim(y):

Dimethoxyphosphine oxide, Dimethyl hydrogen phosphite, Dimethyl hydrogen phosphonate, Dimethyl phosphonate, Hydrogen dimethyl phosphite

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25 G
243,00 zł
500 G
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About This Item

Wzór liniowy:
(CH3O)2P(O)H
Numer CAS:
Masa cząsteczkowa:
110.05
Beilstein:
1697490
Numer WE:
Numer MDL:
Kod UNSPSC:
12352100
Identyfikator substancji w PubChem:
NACRES:
NA.22

243,00 zł


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Poziom jakości

Próba

98%

Formularz

liquid

zanieczyszczenia

≤0.5% trimethyl phosphate
≤1% methyl alcohol

współczynnik refrakcji

n20/D 1.402 (lit.)

bp

170-171 °C (lit.)

gęstość

1.2 g/mL at 25 °C (lit.)

ciąg SMILES

[H]P(=O)(OC)OC

InChI

1S/C2H7O3P/c1-4-6(3)5-2/h6H,1-2H3

Klucz InChI

HZCDANOFLILNSA-UHFFFAOYSA-N

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Zastosowanie

Dimethyl phosphite is used in the synthesis of α-aminophosphonates, which are medicinally important phosphorus analogs of amino acids, by treating with an amine and an aldehyde or a ketone.[1][2] It can also be employed in asymmetric hydrophosphonylation of aldehydes to synthesize optically active α-hydroxy phosphonates.[3]
Dimethyl phosphite may be used as an effective alternative to organic tin hydrides as radical reducing agents for organic halides, thionoesters, and isocyanides to form the corresponding hydrocarbons.[4] Radical translocation/cyclization reactions of terminal alkynes to form cyclic phosphonates can also be effectively carried using dimethyl phosphite as a reagent under tin-free condition.[5]
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Piktogramy

Health hazardExclamation mark

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Klasyfikacja zagrożeń

Aquatic Chronic 3 - Carc. 2 - Muta. 2 - Skin Sens. 1

Kod klasy składowania

10 - Combustible liquids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

158.0 °F - closed cup

Temperatura zapłonu (°C)

70 °C - closed cup

Środki ochrony indywidualnej

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


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Microwave-assisted solvent-free and catalyst-free Kabachnik?Fields reactions for α-amino phosphonates.
Mu X J, et al.
Tetrahedron Letters, 47(7), 1125-1127 (2006)
Zirconium (IV) compounds as efficient catalysts for synthesis of α-aminophosphonates.
Bhagat S and Chakraborti A K
The Journal of Organic Chemistry, 73(15), 6029-6032 (2008)
Yeonju Kim et al.
Nanotechnology, 21(49), 495501-495501 (2010-11-17)
Single-walled carbon nanotube (SWNT) networks were used to detect hazardous dimethyl-methyl-phosphonate (DMMP) gas in real time, employing two different metals as electrodes. Random networks of SWNTs were simply obtained by drop-casting a SWNT-containing solution onto a surface-oxidized Si substrate. Although
Ming Xie et al.
Journal of hazardous materials, 181(1-3), 975-980 (2010-06-18)
Nanofiltration (NF) was investigated for the removal of glyphosate in the neutralization liquor produced by the glycine-dimethylphosphit process. The Desal-5 DK membrane was chosen as the most suitable membrane for the NF process when compared to the DL and NTR7450
Dimethyl hydrogen phosphite.
IARC monographs on the evaluation of carcinogenic risks to humans, 48, 85-93 (1990-01-01)

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

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    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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  2. 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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