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Documenti fondamentali

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194409

Sigma-Aldrich

Bromotrimethylsilane

97%

Sinonimo/i:

TMBS, Trimethylbromosilane, Trimethylsilyl bromide

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About This Item

Formula condensata:
(CH3)3SiBr
Numero CAS:
2857-97-8
Peso molecolare:
153.09
Beilstein:
1731135
Numero CE:
220-672-0
Numero MDL:
MFCD00000048
Codice UNSPSC:
12352103
ID PubChem:
24851651
NACRES:
NA.22
Prezzi e disponibilità al momento non sono disponibili

Livello qualitativo

200

Saggio

97%

Stato

liquid

contiene

copper as stabilizer

Indice di rifrazione

n20/D 1.424 (lit.)

P. ebollizione

79 °C (lit.)

Densità

1.16 g/mL at 25 °C (lit.)

Stringa SMILE

C[Si](C)(C)Br

InChI

1S/C3H9BrSi/c1-5(2,3)4/h1-3H3
IYYIVELXUANFED-UHFFFAOYSA-N

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Categorie correlate

Applicazioni

Used with InCl3 to catalyze the direct allylation of a variety of alcohols with allyltrimethylsilane.[1]

Avvertenze

Danger

Indicazioni di pericolo

H226,H314,H335,H410

Classi di pericolo

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3

Organi bersaglio

Respiratory system

Rischi supp

EUH014

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

89.6 °F

Punto d’infiammabilità (°C)

32 °C

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
SDBB1118
STBL3002
STBK8738
STBK6646
STBK0727

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Bismuth(III) bromide ≥98%

Sigma-Aldrich

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Triethyl phosphite 98%

Sigma-Aldrich

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Triethyl phosphite

Phosphorus(V) oxybromide >95%

Sigma-Aldrich

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Phosphorus(V) oxybromide

Methoxytrimethylsilane 99%

Sigma-Aldrich

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Aldrichimica Acta, 14, 31-31 (1981)
Takahiro Saito et al.
The Journal of organic chemistry, 71(22), 8516-8522 (2006-10-27)
The combination of InCl3 and Me3SiBr provided an enhanced Lewis acid system that can be used to promote a wide range of direct coupling reactions between alcohols and silyl nucleophiles in non-halogenated solvents, such as hexane or MeCN. The enhanced
J. Chem. Soc. Perkin Trans. II, 263-263 (1991)
A Otaka
Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan, 120(1), 54-67 (2000-02-03)
This review summarizes the development of deprotecting methodologies for peptides and their practical application to the synthesis of disulfide bond- or phosphoamino acid-containing peptides. Acidic deprotecting systems utilizing Brønsted acid (HF, trifluoromethanesulfonic acid (TFMSA) and HBr etc.) have been used
J L Hughes et al.
Peptide research, 8(5), 298-300 (1995-09-01)
The cleavage of a peptide resin attached to a phenylacetomidomethyl (PAM) resin was investigated using bromotrimethylsilane (TMSBr) with thioanisole in trifluoroacetic acid (TFA), and by chlorotrimethylsilane (TMSCl) in the same reagents with lithium bromide. Both TMSBr and TMSCl cleaved the
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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

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