TRIMETHYLSILYL CHLOROSULFONATE

CAS No.：4353-77-9

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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TRIMETHYLSILYL CHLOROSULFONATE Basic information

Product Name:	TRIMETHYLSILYL CHLOROSULFONATE
Synonyms:	chlorosulfonate de trimethylsilyle;[chlorosulfonyloxy(dimethyl)silyl]methane;TRIMETHYLSILYL CHLOROSULFONATE;TRIMETHYLSILYLCHLOROSULPHONATE;trimethylsilyl chlorosulphate;Chloridosulfuric acid trimethylsilyl ester;Chlorosulfonic acid (trimethylsilyl) ester;Chlorosulfonic acid trimethylsilyl ester
CAS:	4353-77-9
MF:	C3H9ClO3SSi
MW:	188.71
EINECS:	224-425-8
Product Categories:	Organic Building Blocks;Sulfonates/Sulfinates;Sulfur Compounds
Mol File:	4353-77-9.mol

TRIMETHYLSILYL CHLOROSULFONATE Chemical Properties

Melting point	−26 °C(lit.)
Boiling point	168-169 °C(lit.)
density	1.225 g/mL at 25 °C(lit.)
refractive index	n20/D 1.424(lit.)
Fp	108 °F
form	liquid
Specific Gravity	1.23
Hydrolytic Sensitivity	8: reacts rapidly with moisture, water, protic solvents
BRN	1763675

Safety Information

Hazard Codes	C
Risk Statements	10-34
Safety Statements	26-36/37/39-45
RIDADR	UN 2920 8/PG 2
WGK Germany	3
F	10-21
TSCA	No
HazardClass	3.2
PackingGroup	III

MSDS Information

Provider	Language
SigmaAldrich	English

TRIMETHYLSILYL CHLOROSULFONATE Usage And Synthesis

Uses

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

General Description

Trimethylsilyl chlorosulfonate is commonly employed as sulfonating agent.

TRIMETHYLSILYL CHLOROSULFONATE Preparation Products And Raw materials

Preparation Products

Diphenyl sulfone-->TRIMETHYLSILYLBENZENESULFONATE

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