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Sigma-Aldrich

Trimethoxymethylsilane

98%

Synonym(s):

Methyltrimethoxysilane

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About This Item

Linear Formula:
CH3Si(OCH3)3
CAS Number:
1185-55-3
Molecular Weight:
136.22
Beilstein/REAXYS Number:
1736151
EC Number:
214-685-0
MDL number:
MFCD00008342
UNSPSC Code:
12352103
PubChem Substance ID:
24854790
NACRES:
NA.06

Quality Level

200

assay

98%

form

liquid

refractive index

n20/D 1.371 (lit.)

bp

102-104 °C (lit.)

density

0.955 g/mL at 25 °C (lit.)

SMILES string

CO[Si](C)(OC)OC

InChI

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

InChI key

BFXIKLCIZHOAAZ-UHFFFAOYSA-N

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General description

Trimethoxymethylsilane (MTM) is an organosilicon compound widely used as a precursor for the preparation of silica-based materials, which finds the applications in various fields. Particularly in molecular assembly, linking nano building blocks, and selective synthesis oligosiloxane compounds. It can also be utilized as a crosslinker in the synthesis of polysiloxane polymers.

Application

Trimethoxymethylsilane can be used:
  • As a silica source for synthesizing polyethyleneimine-silica (PEI-silica) organic-inorganic hybrid particles.
  • To transform hydrophilic ceramic surfaces to hydrophobic by modifying the -OH groups.
  • To modify silica aerogels by inducing hydrophobicity and enhancing mechanical properties without affecting transparency.

pictograms

Flame
GHS02

signalword

Danger

hcodes

H225

Hazard Classifications

Flam. Liq. 2

wgk_germany

WGK 3

flash_point_f

48.2 °F

flash_point_c

9 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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The formation of polyethyleneimine?trimethoxymethylsilane organic?inorganic hybrid particles.
Neville F, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 431, 42-50 (2013)
Investigation of Silane Modified Ceramic Surface of Porous Mullite Ceramics.
Markovska I, et al.
World Academy of Science, Engineering and Technology, 79(7), 272-276 (2013)
Organo-modified silica aerogels and implications for material hydrophobicity and mechanical properties.
Martin L, et al.
Journal of Materials Chemistry, 18(2), 207-213 (2008)
Utilization of alkoxysilyl groups for the creation of structurally controlled siloxane-based nanomaterials
Kuroda K, et al.
Chemistry of Materials, 26(1), 211-220 (2014)
Sameer Kulkarni et al.
Journal of chromatography. A, 1174(1-2), 50-62 (2007-11-21)
Sol-gel coating with covalently bonded low-molecular-weight (MW<300 Da) poly(ethylene glycol) (PEG) chains was developed for capillary microextraction (CME). The sol-gel chemistry proved effective in the immobilization of low-molecular-weight PEGs thanks to the formation of chemical bonds between the organic-inorganic hybrid
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