Methoxy(dimethyl)octadecylsilane

Basic Information

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CAS Number

71808-65-6

Molecular Formula

C21H46OSi

Molecular Weight

342.68 g/mol

Chemical Classification

Polymers and Plastics Thermoplastics Polyolefins

Basic Physical Properties

Melting Point

0.821 g/cm3

Boiling Point

184 °C

Density

0.83 g/mL at 25 °C

Refractive Index

n20/D 1.444(lit.)<br />n20/D 1.444

SMILES

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CCCCCCCCCCCCCCCCCC[Si](C)(C)OC

InChI

InChI=1S/C21H46OSi/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-23(3,4)22-2/h5-21H2,1-4H3

InChIKey

RUFRLNPHRPYBLF-UHFFFAOYSA-N

LogP

8.099400000000008

Topological Polar Surface Area

9.23 Å²

Hydrogen Bond Donor/Acceptor

0 / 1

Complexity

228

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Synonyms & References

English

Methoxy(Dimethyl)Ctadecylsilane
Octadecyldimethylmethoxysilane
Ctadecyldimethylmethoxysilane
methoxy-dimethyl-octadecylsilane
Silane,methoxydimethyloctadecyl-
Methoxydimethyloctadecylsilane
SCHEMBL236670
EINECS 276-039-4
71808-65-6
A866361
MFCD00042920
AKOS030632193
Methoxy(dimethyl)octadecylsilane, technical, >=90% (GC)
N-Ctadecyldimethylmethoxysilane
Dimethylmethoxyoctadecylsilane, Dimethyloctadecylmethoxysilane, Octadecyldimethylmethoxysilane
FS-5507
NS00062000
WCA80865
methoxydimethyl(octadecyl)silane
M3011
C21H46OSi
Methoxy(dimethyl)octadecylsilane
N-OCTADECYLDIMETHYLMETHOXYSILANE
Methoxy(dimethyl)octadecylsilane, tech grade
FT-0756086
DTXSID6072429
octadecyl dimethylmethoxysilane
n-Octadecyl Dimethyl Methoxysilane
KU9CCV3QLK
D93238
Silane, methoxydimethyloctadecyl-

MDL Number

MFCD00042920

FAQ

What are the physical and chemical properties of Methoxy(dimethyl)octadecylsilane (CAS: 71808-65-6)?

Methoxy(dimethyl)octadecylsilane is a clear, colorless to light yellow liquid with a molecular weight of approximately 416.56 g/mol. It is poorly soluble in water but miscible with organic solvents. Chemically, it is stable but exhibits low reactivity under normal conditions. It is typically used for its hydrophobic surface modification properties.

How is Methoxy(dimethyl)octadecylsilane (CAS: 71808-65-6) typically synthesized?

Methoxy(dimethyl)octadecylsilane is usually synthesized through the reaction of 1-octadecene with dimethoxydimethylsilane in the presence of a Lewis acid catalyst such as boron trifluoride. The process involves controlled conditions to achieve high selectivity and yield, with the product undergoing purification to remove unreacted starting materials.

What industries use Methoxy(dimethyl)octadecylsilane (CAS: 71808-65-6)?

Methoxy(dimethyl)octadecylsilane is widely used in the pharmaceuticals, polymers, and semiconductors industries. It is particularly valued for its ability to modify surfaces to improve adhesion, reduce friction, and enhance stability in various applications.

What precautions should be taken when handling Methoxy(dimethyl)octadecylsilane (CAS: 71808-65-6)?

When handling Methoxy(dimethyl)octadecylsilane, it is essential to use appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be done in a well-ventilated area or fume hood to minimize inhalation risk. Spills should be cleaned up using appropriate absorbents, and the area should be thoroughly ventilated. Refer to the Safety Data Sheet (SDS) for additional handling and disposal information.