Sodium p-toluenesulfonate
Sodium p-toluenesulfonate (CAS 657-84-1; CH3C6H4SO3Na; MW 194.18) is a chemical compound supplied by Tech Serve Solutions. This white solid serves as a valuable building block in organic synthesis and finds application as a supporting electrolyte in electrochemical studies. Its properties also lend it to use in the investigation of resin particle performance.
- IUPAC
- p-Toluenesulfonic acid sodium salt
- Synonyms
- p-Toluenesulfonic acid sodium salt

Electrochemical Deposition
Sodium p-toluenesulfonate acts as a supporting electrolyte for the deposition of polypyrrole membranes, facilitating electrochemical processes in material science research.
Resin Particle Performance Studies
Utilised as a solute, this compound aids in the study and assessment of the performance characteristics of various resin particles.
Organic Synthesis Building Block
As an organic building block, Sodium p-toluenesulfonate is employed in the synthesis of more complex organic molecules.
| Molecular weight | 194.18 |
|---|---|
| Linear formula | CH3C6H4SO3Na |
| Assay | 95% |
| Application | Sodium p-toluenesulfonate was used as a supporting electrolyte for depositing polypyrrole membranes1. It was also used as a solute to study the performance of resin particles2. |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 500 °C / 932 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| 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 Sodium p-toluenesulfonate used for?
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Sodium p-toluenesulfonate is used as a supporting electrolyte for depositing polypyrrole membranes and as a solute to study resin particle performance. It also serves as a building block in chemical synthesis.
What is the CAS number and chemical formula for Sodium p-toluenesulfonate?
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The CAS number for Sodium p-toluenesulfonate is 657-84-1, and its chemical formula is CH3C6H4SO3Na.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium p-toluenesulfonate with an assay of 95%. This product is not represented as USP, BP, EP, or pharmacopoeia grade.
How should Sodium p-toluenesulfonate be handled safely?
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Sodium p-toluenesulfonate is classified as an irritant (H319). Handle with appropriate personal protective equipment, including a dust mask (type N95), eyeshields, and gloves, in a well-ventilated area. In case of contact with eyes, rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Can Tech Serve Solutions export Sodium p-toluenesulfonate?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Sodium p-toluenesulfonate.
How can I request a quote or sample of Sodium p-toluenesulfonate?
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Please contact our sales team directly via phone or email to request a quote or sample of Sodium p-toluenesulfonate.
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