3-(Trimethylsilyl)-1-propanesulfonic acid sodium salt
3-(Trimethylsilyl)-1-propanesulfonic acid sodium salt (CAS: 2039-96-5) is a versatile organic building block with the linear formula (CH3)3Si(CH2)3SO3Na and a molecular weight of 218.32 g/mol. This silane derivative, containing a sulfonic acid moiety, is primarily utilised in chemical synthesis. Its unique structure makes it valuable for introducing specific functional groups in organic chemistry research and development.
- IUPAC
- 2,2-Dimethyl-2-silapentane-5-sulfonate sodium salt,DSS sodium salt,Sodium 3-(trimethylsilyl)-1-propanesulfonate
- Synonyms
- 2,2-Dimethyl-2-silapentane-5-sulfonate sodium saltDSS sodium saltSodium 3-(trimethylsilyl)-1-propanesulfonate

Organic Synthesis
Serves as a key intermediate in the synthesis of more complex organic molecules. Its silyl and sulfonate groups allow for diverse reaction pathways.
Material Science
Can be employed in the development of novel materials, potentially influencing surface properties or acting as a precursor in polymerisation.
Research and Development
Utilised in academic and industrial laboratories for exploring new chemical reactions and developing innovative compounds.
| Molecular weight | 218.32 |
|---|---|
| Linear formula | (CH3)3Si(CH2)3SO3Na |
| Assay | 97% |
| Melting point | ~165 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 3-(Trimethylsilyl)-1-propanesulfonic acid sodium salt used for?
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This compound is primarily used as a building block in organic synthesis and in research and development for creating new chemical entities and materials.
What are the CAS number and formula for this product?
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The CAS number is 2039-96-5 and the linear formula is (CH3)3Si(CH2)3SO3Na.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product at an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 3-(Trimethylsilyl)-1-propanesulfonic acid sodium salt be handled?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A respirator filter (type N95 or P1) is recommended. It has a melting point of approximately 165 °C with decomposition.
Is this product controlled or scheduled?
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There is no indication in the provided data that this product is a controlled or scheduled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, ensuring appropriate packaging and adherence to shipping regulations for international export.
How can I request a quote or sample?
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Please contact our sales team via the website to request a quote or a sample for 3-(Trimethylsilyl)-1-propanesulfonic acid sodium salt.
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