2,4,6-Trichlorobenzenesulfonyl chloride
2,4,6-Trichlorobenzenesulfonyl chloride (CAS 51527-73-2) is an organic sulfur compound with the linear formula Cl3C6H2SO2Cl and a molecular weight of 279.96 g/mol. This reagent is primarily utilised as a building block in chemical synthesis, particularly within organic chemistry. Its structure, featuring a sulfonyl chloride group attached to a trichlorinated benzene ring, makes it a versatile intermediate for introducing the 2,4,6-trichlorobenzenesulfonyl moiety into various molecular frameworks.
- Synonyms
- 51527-73-2Cl3C6H2SO2Cl

Organic Synthesis Intermediate
2,4,6-Trichlorobenzenesulfonyl chloride serves as a valuable intermediate in the synthesis of complex organic molecules. Its reactivity allows for derivatisation, enabling the creation of novel compounds for research and development.
Building Block for Specialty Chemicals
The compound functions as a key building block in the preparation of various specialty chemicals. It is used to introduce specific functional groups and structural motifs critical for targeted chemical properties.
Reagent in Organic Chemistry
As a sulfonyl halide, it is employed as a reagent in diverse organic reactions. Its applications span the formation of sulfonamides, sulfonates, and other sulfur-containing derivatives used in medicinal chemistry and materials science.
| Molecular weight | 279.96 |
|---|---|
| Linear formula | Cl3C6H2SO2Cl |
| Assay | 96% |
| Melting point | 44-48 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 2,4,6-Trichlorobenzenesulfonyl chloride used for?
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2,4,6-Trichlorobenzenesulfonyl chloride is used as a building block and intermediate in organic synthesis and the preparation of specialty chemicals.
What is the CAS number and formula for 2,4,6-Trichlorobenzenesulfonyl chloride?
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The CAS number is 51527-73-2 and the linear formula is Cl3C6H2SO2Cl.
What grade and purity does Tech Serve Solutions supply for 2,4,6-Trichlorobenzenesulfonyl chloride?
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Tech Serve Solutions supplies 2,4,6-Trichlorobenzenesulfonyl chloride with an assay of 96%. This product is not represented as USP, BP, or EP grade.
What are the main safety hazards associated with 2,4,6-Trichlorobenzenesulfonyl chloride?
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2,4,6-Trichlorobenzenesulfonyl chloride is classified as a Danger (GHS05) substance, with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection, must be used. Handle with extreme caution in a well-ventilated area.
How is 2,4,6-Trichlorobenzenesulfonyl chloride packed and shipped?
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This chemical is shipped as UN 3261, Class 8, Packing Group II. TSS exports fine chemicals globally, adhering to all relevant shipping regulations.
How can I request a quote or sample for 2,4,6-Trichlorobenzenesulfonyl chloride?
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To request a quote or sample, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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