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Sigma-Aldrich

1,1,1,3,5,5,5-Heptamethyltrisiloxane

97%

Sinônimo(s):

2,2,4,6,6-Pentamethyl-3,5-dioxa-2,4,6-trisilaheptane, 2-Hydro-1,1,1,2,3,3,3-heptamethyltrisiloxane, Bis(trimethylsiloxy)methylsilane, Heptamethylhydrotrisiloxane, Methylbis(trimethylsiloxy)silane

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About This Item

Fórmula linear:
[(CH3)3SiO]2SiHCH3
Número CAS:
Peso molecular:
222.50
Beilstein:
1748455
Número CE:
Número MDL:
Código UNSPSC:
12352103
ID de substância PubChem:
NACRES:
NA.22

R$ 1.079,00


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Ensaio

97%

índice de refração

n20/D 1.382 (lit.)

p.e.

142 °C (lit.)

densidade

0.819 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

C[SiH](O[Si](C)(C)C)O[Si](C)(C)C

InChI

1S/C7H22O2Si3/c1-10(8-11(2,3)4)9-12(5,6)7/h10H,1-7H3

chave InChI

QNWOFLWXQGHSRH-UHFFFAOYSA-N

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Aplicação

1,1,1,3,5,5,5-Heptamethyltrisiloxane can be used for the aromatic C-H silylation of arenes in the presence of a platinum complex catalyst.[1]
It can also be used as a reagent to synthesize:
  • 3-Octyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, an agricultural adjuvant and sensory performance enhancer used in cosmetic formulations.[2]
  • Isoindigo-based conjugated polymer with siloxane-terminated solubilizing group.[3]
  • Monosiloxy esters with a variety of acids.[4]

Pictogramas

FlameExclamation mark

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

71.6 °F - closed cup

Ponto de fulgor (°C)

22 °C - closed cup

Equipamento de proteção individual

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


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Os clientes também visualizaram

Platinum-catalyzed aromatic C-H silylation of arenes with 1, 1, 1, 3, 5, 5, 5-Heptamethyltrisiloxane
Murata M, et al.
Chemistry Letters (Jpn), 36(7), 910-911 (2007)
Iron catalysts for selective anti-Markovnikov alkene hydrosilylation using tertiary silanes
Tondreau AM, et al.
Science (New York, N.Y.), 335(6068), 567-570 (2012)
Siloxane-terminated solubilizing side chains: bringing conjugated polymer backbones closer and boosting hole mobilities in thin-film transistors
Mei J, et al.
Journal of the American Chemical Society, 133(50), 20130-20133 (2011)
An efficient Pd-catalyzed route to silyl esters
Chauhan M, et al.
Organic Letters, 2(8), 1027-1029 (2000)
Kairui Liu et al.
Nature communications, 10(1), 996-996 (2019-03-03)
While numerous single atoms stabilized by support surfaces have been reported, the synthesis of in-situ reduced discrete metal atoms weakly coordinated and stabilized in liquid media is a more challenging goal. We report the genesis of mononuclear electron deficient Pt1(0)

Questions

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  1. 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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  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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