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Safety Information

246174

Sigma-Aldrich

Trimethoxymethylsilane

98%

Synonym(s):

Methyltrimethoxysilane

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250 ML
CN¥614.81
1 L
CN¥700.01

CN¥614.81

Available to ship onApril 24, 2025Details

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250 ML
CN¥614.81
1 L
CN¥700.01

About This Item

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

CN¥614.81

Available to ship onApril 24, 2025Details

Request a Bulk Order

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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This Item
17557969471440175
Trimethoxymethylsilane 98%

246174

Trimethoxymethylsilane

Triethoxymethylsilane 99%

175579

Triethoxymethylsilane

Trimethoxymethylsilane purum, ≥98.0% (GC)

69471

Trimethoxymethylsilane

Trimethoxymethylsilane 95%

440175

Trimethoxymethylsilane

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

100

density

0.955 g/mL at 25 °C (lit.)

density

0.895 g/mL at 25 °C (lit.)

density

0.955 g/mL at 25 °C (lit.)

density

0.955 g/mL at 25 °C (lit.)

bp

102-104 °C (lit.)

bp

141-143 °C (lit.)

bp

102-104 °C (lit.)

bp

102-104 °C (lit.)

refractive index

n20/D 1.371 (lit.)

refractive index

n20/D 1.383 (lit.)

refractive index

n20/D 1.371 (lit.)

refractive index

n20/D 1.371 (lit.)

form

liquid

form

liquid

form

liquid

form

liquid

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.[1][2]

Application

Trimethoxymethylsilane can be used:
  • As a silica source for synthesizing polyethyleneimine-silica (PEI-silica) organic-inorganic hybrid particles.[3]
  • To transform hydrophilic ceramic surfaces to hydrophobic by modifying the -OH groups.[4]
  • To modify silica aerogels by inducing hydrophobicity and enhancing mechanical properties without affecting transparency.[5]

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H225

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

48.2 °F

Flash Point(C)

9 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    SDBB3390
    SDBB0645
    SDBB0536
    STBL2922
    STBK9282

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    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)
    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)
    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)
    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)
    Casseday P Richers et al.
    Inorganic chemistry, 55(12), 5744-5746 (2016-06-04)
    The commercially practiced conversion of trimethoxymethylsilane (MTM) to [OSi(OMe)Me)]n polymers and resins is assumed to proceed via the silanol (MeO)2MeSiOH. Access to this crucial silanol is gained via the synthesis of (MeO)2MeSiONa, the first methoxysilanoate to be crystallographically characterized. Mild
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