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71808-65-6

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Identification

Name
N-OCTADECYLDIMETHYLMETHOXYSILANE
CAS
71808-65-6
Synonyms
71808-65-6
OCTADECYLDIMETHYLMETHOXYSILANE
DIMETHYLOCTADECYLMETHOXYSILANE
DIMETHYLMETHOXYOCTADECYLSILANE
Octadecylmethoxydimethylsilane
N-OCTADECYLDIMETHYLMETHOXYSILANE
Silane,methoxydimethyloctadecyl-
Methoxy(dimethyl)octadecylsilane
n-Octadecyldimethylmethoxysilane92%
Dimethylmethoxyoctadecylsilane, Dimethyloctadecylmethoxysilane, Octadecyldimethylmethoxysilane
EINECS(EC#)
276-039-4
Molecular Formula
C21H46OSi
MDL Number
MFCD00042920
Molecular Weight
342.67
MOL File
71808-65-6.mol

Chemical Properties

Boiling point 
184 °C
density 
0.83 g/mL at 25 °C(lit.)

refractive index 
n20/D 1.444(lit.)

Fp 
>110°C
Specific Gravity
0.83
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
7346074
InChIKey
RUFRLNPHRPYBLF-UHFFFAOYSA-N
CAS DataBase Reference
71808-65-6
EPA Substance Registry System
Silane, methoxydimethyloctadecyl- (71808-65-6)

Safety Data

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3


21
TSCA 
Yes

Hazard Information

Uses
Silica spheres for HPLC colums were reported to be functionalized with methoxy(dimethyl) octadecylsilane. 1 Methoxy(dimethyl) octadecylsilane may be grafted on the surface of ZnO nanoparticles. 2

General Description
Methoxy(dimethyl)octadecylsilane(MDOS) is an organosilane with one methoxy group. It is a silane coupling agent which forms a self-assembled monolayer(SAM) on a variety of particles.

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