Trimethoxy(methyl)silane | CAS No. 1185-55-3

Q: What is Trimethoxy(methyl)silane (CAS: 1185-55-3)?

Trimethoxy(methyl)silane (CAS: 1185-55-3), also known as 3-methoxy-3-methyl-1,3,5-trioxasilane, is an organosilicon compound with the chemical formula C4H12OSi. It is a colorless, volatile liquid with low solubility in water but good solubility in organic solvents. This compound is characterized by its reactivity toward moisture and air, making it a precursor in the synthesis of silicone-based materials and functionalized silicones.

Q: What are the main uses of Trimethoxy(methyl)silane (CAS: 1185-55-3)?

Trimethoxy(methyl)silane (CAS: 1185-55-3) is primarily used in the production of silicone polymers, coatings, and as a coupling agent in composite materials. It finds applications in pharmaceuticals for drug delivery systems, in industrial processes for surface modification, and in research for creating organosilicon derivatives. Its versatility supports use in materials science and chemical synthesis, particularly in cross-linking and functionalization.

Q: Is Trimethoxy(methyl)silane (CAS: 1185-55-3) safe?

Trimethoxy(methyl)silane (CAS: 1185-55-3) requires careful handling due to its reactivity with moisture and potential flammability. Safety precautions include using appropriate personal protective equipment (PPE), ensuring proper ventilation, and avoiding contact with water or open flames. While it is not classified as highly toxic, adherence to OSHA and REACH guidelines is essential to minimize health and environmental risks.

Q: How should Trimethoxy(methyl)silane (CAS: 1185-55-3) be stored?

Trimethoxy(methyl)silane (CAS: 1185-55-3) should be stored in a cool, dry, and dark place, sealed in airtight containers to prevent exposure to moisture and air. It is stable under normal storage conditions but requires avoidance of high temperatures and humidity. Storage in a well-ventilated area with fire-resistant materials is recommended to ensure safety and longevity.

Trimethoxy(methyl)silane

Basic Information

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CAS Number

1185-55-3

Molecular Formula

C4H12O3Si

Molecular Weight

136.22 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Melting Point

<-70°C

Boiling Point

102-104 °C

Solubility

Decomposes in water.

Refractive Index

n20/D 1.371(lit.)

SMILES

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CO[Si](C)(OC)OC

InChI

InChI=1S/C4H12O3Si/c1-5-8(4,6-2)7-3/h1-4H3

InChIKey

BFXIKLCIZHOAAZ-UHFFFAOYSA-N

LogP

0.49429999999999985

Topological Polar Surface Area

27.69 Å²

Hydrogen Bond Donor/Acceptor

0 / 3

Complexity

Safety Information

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GHS Hazard Pictograms

H225

Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

Hazard Class

Class 3 Class 3

Stability

Stable, but moisture sensitive. Highly flammable. Incompatible with water, strong acids, strong oxidizing agents.

Sensitiveness

Moisture Sensitive

Synonyms & References

English

methyltrimethoxysilane
Trimethoxy(methyl)silane
silanea-163
trimethoxymethyl-silan
Union carbide a-163
Trimethoxymethylsilane
CM9100
Dynasylan MTMS
HD-119
Methyltrimethoxysilane in stock
Methyltrimethoxysilane,AcroSeal
Metyltrimethoxysilane
monomethyl trimethoxy silane
MTMS
Trimethoxymethylsila
Z 6070
Silane, trimethoxymethyl-
SILANE, METHYLTRIMETHOXY-
methyl trimethoxysilane
methyl-trimethoxysilane
0HI0D71MCI
BFXIKLCIZHOAAZ-UHFFFAOYSA-N
Methyltrimethoxysilane, 97%
Methyltrimethoxysilane, 97%, AcroSeal(R)
C4H12O3Si
Silane, trimethoxymethyl-, hydrolysis products with silica
methyltrimetoxysilane
si

MDL Number

MFCD00008342

Customs Code

29310095

FAQ

What is Trimethoxy(methyl)silane (CAS: 1185-55-3)?

Trimethoxy(methyl)silane (CAS: 1185-55-3), also known as 3-methoxy-3-methyl-1,3,5-trioxasilane, is an organosilicon compound with the chemical formula C4H12OSi. It is a colorless, volatile liquid with low solubility in water but good solubility in organic solvents. This compound is characterized by its reactivity toward moisture and air, making it a precursor in the synthesis of silicone-based materials and functionalized silicones.

What are the main uses of Trimethoxy(methyl)silane (CAS: 1185-55-3)?

Trimethoxy(methyl)silane (CAS: 1185-55-3) is primarily used in the production of silicone polymers, coatings, and as a coupling agent in composite materials. It finds applications in pharmaceuticals for drug delivery systems, in industrial processes for surface modification, and in research for creating organosilicon derivatives. Its versatility supports use in materials science and chemical synthesis, particularly in cross-linking and functionalization.

Is Trimethoxy(methyl)silane (CAS: 1185-55-3) safe?

Trimethoxy(methyl)silane (CAS: 1185-55-3) requires careful handling due to its reactivity with moisture and potential flammability. Safety precautions include using appropriate personal protective equipment (PPE), ensuring proper ventilation, and avoiding contact with water or open flames. While it is not classified as highly toxic, adherence to OSHA and REACH guidelines is essential to minimize health and environmental risks.

How should Trimethoxy(methyl)silane (CAS: 1185-55-3) be stored?

Trimethoxy(methyl)silane (CAS: 1185-55-3) should be stored in a cool, dry, and dark place, sealed in airtight containers to prevent exposure to moisture and air. It is stable under normal storage conditions but requires avoidance of high temperatures and humidity. Storage in a well-ventilated area with fire-resistant materials is recommended to ensure safety and longevity.