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359742 Sigma-Aldrich

Trimethylsilyl chlorosulfonate

99%

  • CAS Number 4353-77-9

  • Linear Formula ClSO3Si(CH3)3

  • Molecular Weight 188.71

  •  Beilstein/REAXYS Number 1763675

  •  EC Number 224-425-8

  •  MDL number MFCD00040471

  •  PubChem Substance ID 24862103

  •  NACRES NA.22

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Properties

Related Categories Building Blocks, Chemical Synthesis, Organic Building Blocks, Sulfonates/Sulfinates, Sulfur Compounds More...
Quality Level   200
assay   99%
refractive index   n20/D 1.424 (lit.)
bp   168-169 °C (lit.)
  62-64 °C/10 mmHg (lit.)
mp   −26 °C (lit.)
density   1.225 g/mL at 25 °C (lit.)
SMILES string   C[Si](C)(C)OS(Cl)(=O)=O
InChI   1S/C3H9ClO3SSi/c1-9(2,3)7-8(4,5)6/h1-3H3
InChI key   QWQONZVLXJGXHV-UHFFFAOYSA-N

Description

General description

Trimethylsilyl chlorosulfonate is commonly employed as sulfonating agent.

Application

Trimethylsilyl chlorosulfonate may be used:
• in the sulfonation of small organic molecules
• in the synthesis of sulfonated polysulfone
• as sulfonating agent in the preparation of nano-structured organic-inorganic membranes for proton exchange membrane fuel cells (PEMFC) based on methacrylate and epoxy polymeric structures
• in the preparation of sulfonated polysulfone (sPS)/titanium dioxide (TiO2) composite membranes for use in PEMFCs
• in the preparation of iodosobenzene sulfate, required for the synthesis of cyclic sulfates

Packaging

50 mL in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 2920 3(8) / PGII
WGK Germany 
WGK 3
Flash Point(F) 
107.6 °F - closed cup
Flash Point(C) 
42 °C - closed cup

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Protocols & Articles
Peer-Reviewed Papers
15

References

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