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Trimethylsilylacetylene

Silican-protected group Application
Trimethylsilylacetylene
Trimethylsilylacetylene structure
CAS No.
1066-54-2
Chemical Name:
Trimethylsilylacetylene
Synonyms
TMSA;TMS ACETYLENE;Trimethylsilacetylene;Timethylsilyacetylene;1-Trimethylsilylethyne;(Trimethylsilyl)ethyne;Ethyne,-trimethylsilyl;ethynyltrimethyl-silan;ETHINYLTRIMETHYLSILANE;ETHYNYLTRIMETHYLSILANE
CBNumber:
CB3175930
Molecular Formula:
C5H10Si
Formula Weight:
98.22
MOL File:
1066-54-2.mol

Trimethylsilylacetylene Properties

Melting point:
>0°C
Boiling point:
53 °C(lit.)
Density 
0.695 g/mL at 25 °C(lit.)
vapor pressure 
4.18 psi ( 20 °C)
refractive index 
n20/D 1.388(lit.)
Flash point:
<−30 °F
storage temp. 
2-8°C
solubility 
Miscible with organic solvents.
form 
liquid
color 
colorless
Specific Gravity
0.695
Water Solubility 
reacts
Hydrolytic Sensitivity
4: no reaction with water under neutral conditions
BRN 
906752
InChIKey
CWMFRHBXRUITQE-UHFFFAOYSA-N
CAS DataBase Reference
1066-54-2(CAS DataBase Reference)
NIST Chemistry Reference
(Trimethylsilyl)acetylene(1066-54-2)
EPA Substance Registry System
Trimethylsilylacetylene (1066-54-2)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H315-H319
Precautionary statements  P210-P305+P351+P338-P370+P378-P403+P235-P240-P241-P280a-P303+P361+P353-P501a
Hazard Codes  F,Xi
Risk Statements  11-36/37/38
Safety Statements  16-26-36
RIDADR  UN 1993 3/PG 2
WGK Germany  -
Hazard Note  Flammable/Irritant
TSCA  T
HazardClass  3
PackingGroup  II
HS Code  29310095
NFPA 704
3
1 0

Trimethylsilylacetylene price More Price(14)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 218170 Ethynyltrimethylsilane 98% 1066-54-2 1g $27.6 2019-12-02 Buy
Sigma-Aldrich 218170 Ethynyltrimethylsilane 98% 1066-54-2 5g $53.9 2019-12-02 Buy
TCI Chemical T1239 Trimethylsilylacetylene >98.0%(GC) 1066-54-2 5mL $32 2020-06-24 Buy
TCI Chemical T1239 Trimethylsilylacetylene >98.0%(GC) 1066-54-2 25mL $97 2020-06-24 Buy
Alfa Aesar A12856 (Trimethylsilyl)acetylene, 98% 1066-54-2 25g $168 2020-06-24 Buy

Trimethylsilylacetylene Chemical Properties,Uses,Production

Silican-protected group

Trimethylsilylacetylene is a silican-protected group, also known as trimethylethynylsilane, trimethylethynyl silicon and ethynyltrimethylsilane. It is a colorless transparent liquid at room temperature. It could be used to synthesize parazole by the addition of 1,3-bipolar ring of acetylene diazide. It is also the substrate of nickel catalyzed reaction and benzonitrile coupling reaction.

Application

Chemical Properties

CLEAR COLORLESS LIQUID

Uses

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

Purification Methods

Distil it through an efficient column. The IR has bands at max 2041 (CC) and 3289 (C-H) cm-1. [Kr.hnke & Goss Chem Ber 92 30 1959, Beilstein 4 IV 3937.]

Trimethylsilylacetylene Preparation Products And Raw materials

Raw materials

Preparation Products


Trimethylsilylacetylene Suppliers

Global( 358)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 19929 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21836 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22625 55
Hangzhou FandaChem Co.,Ltd.
0086 158 5814 5714 (Mobile
+86-571-56059825 fandachem@gmail.com CHINA 3269 55
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025-83697070
product@chemlin.com.cn CHINA 3014 60
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 24754 60
Zjartschem
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Hebei Chishuo Biotechnology Co., Ltd.
13292891350 +86 311 66567340
luna@speedgainpharma.com CHINA 1009 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30043 58
Win-Win Chemical CO., Limited
0086-577-64498589
0086-577-56994596 sales@win-winchemical.com CHINA 999 58

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View Lastest Price from Trimethylsilylacetylene manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-07-10 Trimethylsilylacetylene
1066-54-2
1KG 99% + 500 Ton/Tons per Month Hebei Xibaijie Biotechnology Co., Ltd.
2019-04-25 Trimethylsilylacetylene
1066-54-2
US $10.00 / ASSAYS 1ASSAYS 99% 500tons/month Hebei Chishuo Biotechnology Co., Ltd.

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