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92361 Sigma-Aldrich

Chlorotrimethylsilane

≥98.0% (GC)

Synonym: TMCS, Trimethylchlorosilane, Trimethylsilyl chloride

  • CAS Number 75-77-4

  • Linear Formula (CH3)3SiCl

  • Molecular Weight 108.64

  •  Beilstein/REAXYS Number 1209232

  •  EC Number 200-900-5

  •  MDL number MFCD00000502

  •  PubChem Substance ID 57653472

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Properties

Related Categories Chemical Synthesis, Protecting and Derivatizing Reagents, Protection and Derivatization, Silicon-Based, Synthetic Reagents More...
vapor density   3.7 (vs air)
vapor pressure   100 mmHg ( 25 °C)
InChI Key   IJOOHPMOJXWVHK-UHFFFAOYSA-N
assay   ≥98.0% (GC)
autoignition temp.   752 °F
expl. lim.   6.4 %
refractive index   n20/D 1.387 (lit.)
bp   57 °C (lit.)
mp   −40 °C (lit.)
density   0.856 g/mL at 25 °C (lit.)

Description

General description

Chlorotrimethylsilane is a chloro-organosilane compound mainly used for silylation reactions.

Application

Chlorotrimethylsilane has been used to silanize glass surface to make them more hydrophobic. It can be used in combination with hexamethyldisilazane for the protection of alcohols by forming trimethylsilyl ethers via silylation reaction.

Packaging

1 L in glass bottle

100, 500 mL in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Reacts violently with water.
RIDADR 
UN1298 - class 3 - PG 2 - Trimethylchlorosilane
WGK Germany 
1
RTECS 
VV2710000
Flash Point(F) 
-4 °F
Flash Point(C) 
-20 °C
Protocols & Articles
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