3-(Decyldimethylammonio)propanesulfonate inner salt
3-(Decyldimethylammonio)propane-1-sulfonate inner salt (CAS: 15163-36-7), a zwitterionic detergent with the molecular formula CH3(CH2)9N+(CH3)2CH2CH2CH2SO3-, is supplied by Tech Serve Solutions. This compound exhibits a critical micelle concentration (CMC) of 25-40 mM and an aggregation number of 41. It is primarily utilised in biochemical research and chemical synthesis, particularly for membrane protein solubilisation and as a building block.
- IUPAC
- Caprylyl sulfobetaine,SB3-10

Membrane Protein Solubilization
As a zwitterionic detergent, 3-(Decyldimethylammonio)propane-1-sulfonate is effective in solubilising membrane proteins while maintaining their native structure and function, facilitating downstream research and purification.
Biochemical Research
This compound serves as a valuable reagent in various biochemical studies due to its surfactant properties and defined critical micelle concentration, aiding in the analysis of biological macromolecules.
Chemical Synthesis
It functions as an organic building block in complex chemical syntheses, contributing to the development of novel compounds and materials.
| Molecular weight | 307.49 |
|---|---|
| Linear formula | CH3(CH2)9N+(CH3)2CH2CH2CH2SO3- |
| Assay | ≥97.0% (S) |
| Grade | purum |

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
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Description | zwitterionic |
|---|---|
| Mol Wt | micellar avg mol wt 12,600 |
| Conductivity | <20 μmho per cm at 24 °C (0.1 M aqueous solution) |
| Aggregation Number | 41 |
| Cmc | 25-40 mM(20-25°C) |
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-(Decyldimethylammonio)propane-1-sulfonate used for?
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3-(Decyldimethylammonio)propane-1-sulfonate is used in biochemical research for membrane protein solubilisation, as a zwitterionic detergent, and as an organic building block in chemical synthesis.
What are the CAS number and formula for 3-(Decyldimethylammonio)propane-1-sulfonate?
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The CAS number is 15163-36-7 and the linear formula is CH3(CH2)9N+(CH3)2CH2CH2CH2SO3-.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound at a grade of Purum with an assay of ≥97.0% (S). We do not represent this product as USP, BP, or EP grade.
How should 3-(Decyldimethylammonio)propane-1-sulfonate be handled?
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Exercise caution when handling as it may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Use appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions expertly packs, ships, and exports fine chemicals globally, adhering to stringent international regulations to ensure safe and compliant delivery.
How can I request a sample or a quote?
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To request a sample or a quote, please contact our sales department through the provided channels on our website, specifying the product name and CAS number.
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