4-Octylbenzenesulfonic acid sodium salt
4-Octylbenzenesulfonic acid sodium salt (CAS: 6149-03-7), with the molecular formula CH3(CH2)7C6H4SO3Na and a molecular weight of 294.39, is an organic compound. This anionic surfactant functions as a wetting agent and detergent. It finds application in various chemical synthesis processes and as a building block in organic chemistry, leveraging its amphiphilic properties for formulation development and surface activity.

Surfactant and Wetting Agent
This compound acts as an effective anionic surfactant, reducing surface tension and enabling wetting of various substrates. Its amphiphilic nature makes it suitable for detergents and emulsifying formulations.
Chemical Synthesis Intermediate
Utilised as a building block in organic synthesis, its sulfonic acid salt functionality allows for further chemical modifications. It serves as a precursor in the development of more complex organic molecules.
Detergent Formulations
Its detergent properties make it a valuable component in cleaning formulations. It aids in the removal of dirt and oils by forming micelles and solubilizing hydrophobic substances.
| Molecular weight | 294.39 |
|---|---|
| Linear formula | CH3(CH2)7C6H4SO3Na |
| Assay | 97% |

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) | 26-37/39 |
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 4-Octylbenzenesulfonic acid sodium salt used for?
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4-Octylbenzenesulfonic acid sodium salt is primarily used as an anionic surfactant, wetting agent, detergent, and a building block in organic chemical synthesis.
What are the CAS number and formula for 4-Octylbenzenesulfonic acid sodium salt?
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The CAS number is 6149-03-7 and the linear formula is CH3(CH2)7C6H4SO3Na.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Octylbenzenesulfonic acid sodium salt with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling considerations for this chemical?
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This compound is a Warning substance classified with H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Always use appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves. Ensure adequate ventilation.
Is 4-Octylbenzenesulfonic acid sodium salt available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 4-Octylbenzenesulfonic acid sodium salt.
How can I request a sample or quote for 4-Octylbenzenesulfonic acid sodium salt?
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Please contact our sales team through the website or by phone to request a sample or a formal quotation for 4-Octylbenzenesulfonic acid sodium salt.
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