Trimethylsulfonium bromide
Trimethylsulfonium bromide (CAS 3084-53-5, C3H9BrS) is a versatile organic salt with a molecular weight of 157.07 g/mol. It functions as a key building block and reagent in various chemical syntheses, particularly in organic chemistry. Its properties make it suitable for applications involving halogenated hydrocarbons and as a precursor in the creation of more complex molecules. This compound is supplied by Tech Serve Solutions for research and industrial applications.

Organic Synthesis Reagent
Trimethylsulfonium bromide serves as a valuable reagent in organic synthesis, enabling various transformations. It is often employed in reactions requiring a source of methyl groups or in the formation of specific sulfur-containing compounds.
Building Block for Complex Molecules
The compound acts as a fundamental building block for constructing more elaborate organic structures. Its reactive nature allows for incorporation into diverse molecular frameworks used in research and development.
Halogenated Hydrocarbon Chemistry
Utilised in studies and applications involving halogenated hydrocarbons, Trimethylsulfonium bromide can participate in reactions modifying or synthesising such compounds. It is a useful tool for exploring reactivity in this chemical class.
| Molecular weight | 157.07 |
|---|---|
| Empirical formula | C3H9BrS |
| Assay | 97% |
| Melting point | 190-200 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets 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.
What is Trimethylsulfonium bromide used for?
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Trimethylsulfonium bromide is used as a reagent in organic synthesis and as a building block for creating more complex organic molecules, particularly in areas involving halogenated hydrocarbons.
What is the CAS number and formula for Trimethylsulfonium bromide?
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The CAS number is 3084-53-5 and the empirical formula is C3H9BrS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Trimethylsulfonium bromide with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should Trimethylsulfonium bromide be handled safely?
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Trimethylsulfonium bromide is a Warning substance that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area. Avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes and remove contact lenses if present and easy to do. Continue rinsing.
Is Trimethylsulfonium bromide a controlled substance?
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Based on the provided data, there is no indication that Trimethylsulfonium bromide is a controlled substance.
How is Trimethylsulfonium bromide packed and exported?
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Tech Serve Solutions exports chemicals globally, ensuring appropriate packaging for safe transport according to international regulations. Specific packing details are confirmed upon order.
How can I request a sample or quote for Trimethylsulfonium bromide?
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To request a sample or a quote, please contact the Tech Serve Solutions sales team through our website or direct inquiry channels, providing your specific requirements.
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