(Cyclopropylethynyl)(trimethyl)silane

Modify Date: 2025-08-21 09:42:09

(Cyclopropylethynyl)(trimethyl)silane Structure
(Cyclopropylethynyl)(trimethyl)silane structure
 Common Name (Cyclopropylethynyl)(trimethyl)silane
CAS Number 81166-84-9 Molecular Weight 138.282
Density 0.9±0.1 g/cm3 Boiling Point 129.8±7.0 °C at 760 mmHg
Molecular Formula C8H14Si Melting Point N/A
MSDS N/A Flash Point 24.6±10.7 °C

 Names

Name Cyclopropyl(trimethylsilyl)acetylene
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.9±0.1 g/cm3
Boiling Point 129.8±7.0 °C at 760 mmHg
Molecular Formula C8H14Si
Molecular Weight 138.282
Flash Point 24.6±10.7 °C
Exact Mass 138.086472
LogP 3.07
Vapour Pressure 12.2±0.2 mmHg at 25°C
Index of Refraction 1.454

 Safety Information

Hazard Codes Xi: Irritant;F: Flammable;
Risk Phrases R10
Safety Phrases 16-26-36/37/39
RIDADR UN 1993

 Synthetic Route

Chlorotrimethylsilane structure

Chlorotrimethyl...

CAS#:75-77-4

Ethynylcyclopropane structure

Ethynylcyclopropane

CAS#:6746-94-7

~81%

(Cyclopropylethynyl)(trimethyl)silane Structure

(Cyclopropyleth...

CAS#:81166-84-9

Literature: Kozhushkov, Sergei I.; Wagner-Gillen, Karsten; Khlebnikov, Alexander F.; Demeijere, Armin Synthesis, 2010 , # 23 art. no. T17810SS, p. 3967 - 3973
1-Chloro-5-trimethylsilyl-4-pentyne structure

1-Chloro-5-trim...

CAS#:77113-48-5

~82%

(Cyclopropylethynyl)(trimethyl)silane Structure

(Cyclopropyleth...

CAS#:81166-84-9

Literature: Militzer; Schomenauer; Otte; Puls; Hain; Brase; De Meijere Synthesis, 1993 , # 10 p. 998 - 1012
Chlorotrimethylsilane structure

Chlorotrimethyl...

CAS#:75-77-4

1-CHLORO-1-(TRICHLOROVINYL) CYCLOPROPANE structure

1-CHLORO-1-(TRI...

CAS#:82979-27-9

~7%

(Cyclopropylethynyl)(trimethyl)silane Structure

(Cyclopropyleth...

CAS#:81166-84-9

1-(Trimethylsilyl)-1-[(trimethylsilyl)ethinyl]cyclopropan structure

1-(Trimethylsil...

CAS#:83662-48-0

Literature: Chemische Berichte, , vol. 119, # 10 p. 2995 - 3026

 Synonyms

Cyclopropane, [2-(trimethylsilyl)ethynyl]-
(Cyclopropylethynyl)(trimethyl)silane
2-cyclopropylethynyl(trimethyl)silane
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