Tech Serve Solutions

Trimethylsilyl chlorosulfonate

CAS 4353-77-9ClSO3Si(CH3)3Chemical Synthesis

Trimethylsilyl chlorosulfonate (CAS 4353-77-9), molecular formula ClSO3Si(CH3)3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

Trimethylsilyl chlorosulfonate
Building BlocksChemical SynthesisOrganic Building BlocksSulfonates/SulfinatesSulfur Compounds
01 /Properties
Molecular weight188.71
Linear formulaClSO3Si(CH3)3
Assay≥99.0% (AT)
Boiling point168-169 °C(lit.)62-64 °C/10 mmHg(lit.)
Density1.225 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.424(lit.)
Melting point−26 °C(lit.)
02 /Safety & handling
Flammable
Flammable
Corrosive
Corrosive
Danger

Hazard statements

  • H226Flammable liquid and vapour
  • H314Causes severe skin burns and eye damage

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentFaceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point42 °C / 107.6 °F
Transport (UN / ADR)UN 2920 3(8) / PGII
Water hazard class (WGK, DE)3
Hazard codes (EU)C
Risk statements (R)10-34
Safety statements (S)26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
4353-77-9
MDL number
MFCD00040471
PubChem substance
24862103
Beilstein registry
1763675
04 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

05 /Frequently asked questions

What is Trimethylsilyl chlorosulfonate?

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Trimethylsilyl chlorosulfonate (CAS 4353-77-9), molecular formula ClSO3Si(CH3)3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.

What grades of Trimethylsilyl chlorosulfonate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Trimethylsilyl chlorosulfonate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of Trimethylsilyl chlorosulfonate?

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Trimethylsilyl chlorosulfonate has CAS number 4353-77-9 and molecular formula ClSO3Si(CH3)3. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for Trimethylsilyl chlorosulfonate?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of Trimethylsilyl chlorosulfonate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should Trimethylsilyl chlorosulfonate be stored?

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Store Trimethylsilyl chlorosulfonate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is Trimethylsilyl chlorosulfonate used for?

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Trimethylsilyl chlorosulfonate is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for Trimethylsilyl chlorosulfonate?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need Trimethylsilyl chlorosulfonate in a specific grade or volume?

Request a quote