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396281

2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxan

Synonym(e):

2,4,6,8-Tetraethenyl-2,4,6,8-tetramethylcyclotetrasiloxane

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Lineare Formel:
[-Si(CH3)(CH=CH2)O-]4
CAS-Nummer:
Molekulargewicht:
344.66
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
EC Number:
219-863-1
MDL number:
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form

liquid

Quality Segment

refractive index

n20/D 1.434 (lit.)

bp

111-112 °C/10 mmHg (lit.)

mp

−44 °C (dec.) (lit.)

density

0.997 g/mL at 25 °C (lit.)

SMILES string

C[Si]1(O[Si](C)(O[Si](C)(O[Si](C)(O1)C=C)C=C)C=C)C=C

InChI

1S/C12H24O4Si4/c1-9-17(5)13-18(6,10-2)15-20(8,12-4)16-19(7,11-3)14-17/h9-12H,1-4H2,5-8H3

InChI key

VMAWODUEPLAHOE-UHFFFAOYSA-N

General description

In the presence of a Pd catalyst, this reagent cross-couples with aryl bromides to give styrene derivatives.

Application

  • Cyclic siloxanes conjugated with fluorescent aromatic compounds as fluoride sensors: This study explores the use of cyclic siloxanes conjugated with aromatic compounds for sensing applications, offering a pathway for academic chemists interested in sensor technology and fluorescence studies (N Prigyai et al., 2020).
  • Synthesis, film morphology and performance of novel crosslinked polysiloxane with end-capped epoxy groups on cotton substrates: This article examines the chemical modification of cotton substrates using polysiloxane derivatives, which can be crucial for developing advanced textile coatings (L Hao et al., 2014).
  • Stabilizing Li-rich layered oxide cathode interface by using silicon-based electrolyte additive: This research investigates the use of a silicon-based additive derived from 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane to enhance the stability of lithium-rich cathodes, important for chemists working with energy storage technologies (T Huang et al., 2024).

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Dieser Artikel
756245155756461199
description

-

description

90%

description

98%

description

average Mn 670

density

0.997 g/mL at 25 °C (lit.)

density

1.132 g/mL at 25 °C

density

0.883 g/mL at 25 °C (lit.)

density

1.04 g/mL at 25 °C

bp

111-112 °C/10 mmHg (lit.)

bp

-

bp

72-73 °C/6 mmHg (lit.)

bp

>121 °C (lit.)

mp

−44 °C (dec.) (lit.)

mp

-

mp

-

mp

-

refractive index

n20/D 1.434 (lit.)

refractive index

-

refractive index

n20/D 1.459 (lit.)

refractive index

n20/D 1.468

form

liquid

form

viscous liquid

form

liquid

form

-

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

200


pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Repr. 1B

Lagerklasse

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 1

flash_point_f

190.4 °F - closed cup

flash_point_c

88 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter



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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/418/501/product-dating-information-06-25-mk.pdf

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  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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