Pular para o conteúdo
Merck
Todas as fotos(3)

Documentos Principais

324620

Sigma-Aldrich

Lithium bis(trimethylsilyl)amide

97%

Sinônimo(s):

Hexamethyldisilazane lithium salt

Faça loginpara ver os preços organizacionais e de contrato

Selecione um tamanho

10 G
R$ 427,00
50 G
R$ 1.079,00
250 G
R$ 3.508,00

R$ 427,00


Previsão de entrega em04 de abril de 2025


Solicite uma grande encomenda

Selecione um tamanho

Alterar visualização
10 G
R$ 427,00
50 G
R$ 1.079,00
250 G
R$ 3.508,00

About This Item

Fórmula linear:
[(CH3)3Si]2NLi
Número CAS:
Peso molecular:
167.33
Número CE:
Número MDL:
Código UNSPSC:
12352111
ID de substância PubChem:
NACRES:
NA.22

R$ 427,00


Previsão de entrega em04 de abril de 2025


Solicite uma grande encomenda

Nível de qualidade

Ensaio

97%

Formulário

solid

pH

(12.4 at 23,7 °C)

p.e.

110-115 °C (at 1.33 hPa)

pf

70-71 °C

densidade

0.860 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

[Li]N([Si](C)(C)C)[Si](C)(C)C

InChI

1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1

chave InChI

YNESATAKKCNGOF-UHFFFAOYSA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Descrição geral

Lithium bis(trimethylsilyl)amide is a non-nucleophilic strong Brønsted base, which is generally soluble in most of the nonpolar organic solvents. It is most commonly employed in organic reactions.[1][2]

Aplicação

Base employed in generating enolates for the preparation of lactone precursors,[3] pyranones,[4] and cyclohexanes.[5]
Used to catalyze the addition of phosphine P-H bonds to carbodiimides leading to phosphaguanidines.[6] Also used in a novel three-step synthesis of disubstituted 1,2,5-thiadiazoles.[7]

Pictogramas

FlameCorrosion

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B

Perigos de suplementos

Código de classe de armazenamento

4.2 - Pyrophoric and self-heating hazardous materials

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

62.6 °F - closed cup

Ponto de fulgor (°C)

17 °C - closed cup

Equipamento de proteção individual

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


Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number

Não está vendo a versão correta?

Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

Os clientes também visualizaram

Tetrahedron, 50, 9061-9061 (1994)
Ana I Ojeda-Amador et al.
Inorganic chemistry, 55(11), 5719-5728 (2016-05-14)
Reacting cesium fluoride with an equimolar n-hexane solution of lithium bis(trimethylsilyl)amide (LiHMDS) allows the isolation of CsHMDS (1) in 80% yield (after sublimation). This preparative route to 1 negates the need for pyrophoric Cs metal or organocesium reagents in its
Tetrahedron Letters, 47, 8285-8285 (2006)
The Journal of Organic Chemistry, 58, 7304-7304 (1993)
Synlett, 507-507 (1993)

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

      Helpful?

  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

      Helpful?

Reviews

No rating value

Active Filters

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica