MilliporeSigma
All Photos(4)

Documents

218170

Sigma-Aldrich

Ethynyltrimethylsilane

98%

Sign Into View Organizational & Contract Pricing

Synonym(s):
Trimethylsilylacetylene
Linear Formula:
(CH3)3SiC≡CH
CAS Number:
Molecular Weight:
98.22
Beilstein/REAXYS Number:
906752
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

4.18 psi ( 20 °C)

Quality Level

assay

98%

form

liquid

refractive index

n20/D 1.388 (lit.)

bp

53 °C (lit.)

density

0.709 g/cm3 (lit.)

storage temp.

2-8°C

SMILES string

C[Si](C)(C)C#C

InChI

1S/C5H10Si/c1-5-6(2,3)4/h1H,2-4H3

InChI key

CWMFRHBXRUITQE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
523380422150196681
Ethynyltrimethylsilane 98%

218170

Ethynyltrimethylsilane

Triphenylsilanethiol 98%

422150

Triphenylsilanethiol

4-(Trifluoromethyl)benzonitrile 99%

196681

4-(Trifluoromethyl)benzonitrile

Quality Level

200

Quality Level

200

Quality Level

-

Quality Level

100

refractive index

n20/D 1.388 (lit.)

refractive index

-

refractive index

-

refractive index

n20/D 1.4583 (lit.)

bp

53 °C (lit.)

bp

-

bp

-

bp

80-81 °C/20 mmHg (lit.)

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

-

form

liquid

form

-

form

-

form

solid

General description

Laser-induced polymerization of gaseous ethynyltrimethylsilane was used for efficient chemical vapour deposition of polycarbosilane films. Ethynyltrimethylsilane acts as substrate for nickel-catalyzed cross-coupling with benzonitriles.

Application

Ethynyltrimethylsilane was used in:
  • microwave-assisted, one-pot, three-step Sonogashira cross-coupling-desilylation-cycloaddition reaction for the preparation of 1,4-disubstituted 1,2,3-triazoles
  • synthesis of poly(ethynyltrimethylsilane) containing Pd (II) coordination sites
  • pyrazole synthesis via 1,3-dipolar cycloaddition of diazo compounds to acetylenes

pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

-29.2 °F

flash_point_c

-34 °C

ppe

Faceshields, Gloves, Goggles


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Hong Shang et al.
Advanced materials (Deerfield Beach, Fla.), 30(27), e1801459-e1801459 (2018-05-26)
In situ weaving an all-carbon graphdiyne coat on a silicon anode is scalably realized under ultralow temperature (25 °C). This economical strategy not only constructs 3D all-carbon mechanical and conductive networks with reasonable voids for the silicon anode at one
Synthesis and characterization of poly (ethynyltrimethylsilane) containing Pd (II) coordination sites.
Russo MV, et al.
Polymer, 37(9), 1715-1722 (1996)
Heterocycles, 68, 1961-1961 (2006)
Francisco J Caparrós et al.
Molecules (Basel, Switzerland), 25(4) (2020-02-26)
A new 2,7,10,15-tetraethynyldibenzo[g,p]chrysene ligand (1) and two tetranuclear gold(I) derivatives containing PPh3 (3) and PMe3 (4) phosphines were synthesized and characterized by 1H and 31P NMR, IR spectroscopy, and high-resolution mass spectrometry. The compounds were studied in order to analyze
Frédéric Friscourt et al.
Organic letters, 12(21), 4936-4939 (2010-10-15)
A microwave-assisted, one-pot, three-step Sonogashira cross-coupling-desilylation-cycloaddition sequence was developed for the convenient preparation of 1,4-disubstituted 1,2,3-triazoles starting from a range of halides, acyl chlorides, ethynyltrimethylsilane, and azides.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service