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440175

Sigma-Aldrich

Trimethoxymethylsilane

95%

Synonym(s):

MTMS, Methyltrimethoxysilane

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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:
24867574
NACRES:
NA.22

Quality Level

100

Assay

95%

form

liquid

impurities

3% methyl alcohol

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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Application

Trimethoxymethylsilane (MTMS) is one of the key precursor for the synthesis of:
  • Monolithic silica columns with various skeleton sizes for capillary liquid chromatography.
  • Ionogels, where an ionic liquid is confined within silica-derived networks.
  • Monolithic silica aerogels via acid-base sol-gel polymerization.
  • Hydrophobic, flexible, and ultralightweight silylated nanocellulose sponges for the selective removal of oil from water.

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

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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