PROPARGYLOXYTRIMETHYLSILANE

Synonym(s):(Propargyloxy)trimethylsilane;O-(Trimethylsilyl)propargyl alcohol;Trimethyl(2-propynyloxy)silane;Trimethyl(propargyloxy)silane

CAS NO.：5582-62-7
Empirical Formula: C6H12OSi
Molecular Weight: 128.24
MDL number: MFCD00042844
EINECS: 226-981-7
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 02:32:34

What is PROPARGYLOXYTRIMETHYLSILANE?

Chemical properties

CLEAR YELLOW-BROWN LIQUID

The Uses of PROPARGYLOXYTRIMETHYLSILANE

3-Trimethylsiloxy-1-propyne (Trimethyl(2-propynyloxy)silane) may be used in the synthesis of polytrialkylsiloxy-substituted macromolecules. It may be utilized in the preparation of functionalized 4-enynes and 1,4-dienes.

General Description

3-Trimethylsiloxy-1-propyne is an organosilicon compound. It is reported as silylated acetylenic monomer and its polymerizability has been studied in the presence of combined catalyst iron(III) propanoate-triethylaluminium. N₂ laser light-induced aerosol particle formation from 3-trimethylsiloxy-1-propyne (trimethyl(2-propynyloxy)silane) and acrolein has been reported. The infrared laser-photosensitized (SF₆) decomposition of trimethyl(2-propynyloxy)silane is reported to afford a multitude of unsaturated hydrocarbons and a solid polydimethylsiloxane phase.

Properties of PROPARGYLOXYTRIMETHYLSILANE

Melting point:	<0°C
Boiling point:	52 °C85 mm Hg(lit.)
Density	0.835 g/mL at 25 °C(lit.)
refractive index	n20/D 1.408(lit.)
Flash point:	48 °F
storage temp.	Flammables area
form	Liquid
Specific Gravity	0.833
color	Clear yellow-brown
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	2036793
CAS DataBase Reference	5582-62-7(CAS DataBase Reference)
EPA Substance Registry System	Silane, trimethyl(2-propynyloxy)- (5582-62-7)

Safety information for PROPARGYLOXYTRIMETHYLSILANE

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H225:Flammable liquids H302:Acute toxicity,oral
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.