Sodium p-toluenesulfinate hydrate
Sodium p-toluenesulfinate hydrate (CAS: 207801-20-5; Formula: 4-CH3C6H4SO2Na · xH2O) is a sulfur compound offered by Tech Serve Solutions. With a molecular weight of 178.18 (anhydrous basis), this chemical serves as a valuable organic building block. It is utilised in chemical synthesis, particularly in reactions involving sulfur functionalities. TSS supplies this compound for laboratory and industrial research purposes.
- IUPAC
- p-Toluenesulfinic acid sodium salt hydrate

Organic Synthesis Intermediate
Sodium p-toluenesulfinate hydrate acts as a key intermediate in the synthesis of various organic compounds. Its sulfinate group can participate in diverse coupling reactions and functional group transformations.
Reagent in Chemical Research
This compound is employed as a reagent in academic and industrial research laboratories. It is used for developing new synthetic methodologies and exploring novel chemical structures.
Building Block for Specialty Chemicals
Its structure makes it a useful building block for constructing more complex molecules. It can be incorporated into target compounds requiring a p-tolylsulfonyl moiety.
| Molecular weight | 178.18 (anhydrous basis) |
|---|---|
| Linear formula | 4-CH3C6H4SO2Na · xH2O |
| Assay | 97% |
| Melting point | >300 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-toluenesulfinate hydrate used for?
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Sodium p-toluenesulfinate hydrate is used as an intermediate and building block in organic synthesis, and as a reagent in chemical research.
What is the CAS number and formula for Sodium p-toluenesulfinate hydrate?
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The CAS number is 207801-20-5 and the formula is 4-CH3C6H4SO2Na · xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium p-toluenesulfinate hydrate with a minimum assay of 97%. TSS does not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for this chemical?
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This compound is harmful if swallowed and harmful in contact with skin, and causes serious eye irritation. Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
Is Sodium p-toluenesulfinate hydrate available for export?
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Yes, Tech Serve Solutions, as a specialist global supplier and exporter, can handle export requirements for Sodium p-toluenesulfinate hydrate.
How can I request a quote or sample?
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To request a quote or a sample of Sodium p-toluenesulfinate hydrate, please contact our sales team via the website or direct telephone.
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