4-Bromobenzenesulfonamide
4-Bromobenzenesulfonamide (CAS: 701-34-8) is a sulfur-containing organic compound with the molecular formula C6H6BrNO2S and a molecular weight of 236.09. As a key building block in organic synthesis, it serves as a valuable reagent in the preparation of various complex molecules, including cobalt(III) complexes and substituted sulfonamides. Its well-defined structure and reactivity make it a reliable choice for chemical research and development.

Reagent in Coordination Chemistry
4-Bromobenzenesulfonamide has been employed as a reagent in the synthesis of cobalt(III) complexes featuring the N,R-sulfonyldithiocarbimate anion, contributing to the study of novel coordination compounds.
Synthesis of Substituted Sulfonamides
This compound is utilised in the preparation of diverse 2-, 3-, and 4-(substituted-phenylethynyl)benzenesulfonamides, expanding the range of accessible sulfonamide derivatives for research.
Organic Synthesis Building Block
As a versatile building block, 4-Bromobenzenesulfonamide facilitates the construction of more complex organic molecules within academic and industrial research settings.
| Molecular weight | 236.09 |
|---|---|
| Empirical formula | C6H6BrNO2S |
| Assay | ≥99.0% (T) |
| Application | 4-Bromobenzenesulfonamide was used as reagent in preparation of cobalt(III) complexes of N,R-sulfonyldithiocarbimate anion1. It was also used in the synthesis of 2-, 3- and 4-(substituted-phenylethynyl)benzenesulfonamides2. |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
| Safety statements (S) | 22-24/25 |
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-Bromobenzenesulfonamide used for?
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4-Bromobenzenesulfonamide is used as a reagent in the preparation of cobalt(III) complexes and in the synthesis of various substituted benzenesulfonamides. It serves as a building block in organic synthesis.
What is the CAS number and chemical formula for 4-Bromobenzenesulfonamide?
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The CAS number for 4-Bromobenzenesulfonamide is 701-34-8, and its empirical formula (Hill notation) is C6H6BrNO2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromobenzenesulfonamide with a purity of ≥99.0% (T). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling precautions for 4-Bromobenzenesulfonamide?
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4-Bromobenzenesulfonamide is classified as harmful if swallowed (H302). It is recommended to use a dust mask type N95 (US), eyeshields, and gloves when handling. Ensure adequate ventilation and avoid dust formation.
Is 4-Bromobenzenesulfonamide a controlled substance?
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The provided data does not indicate that 4-Bromobenzenesulfonamide is a controlled substance.
How is 4-Bromobenzenesulfonamide packed and shipped?
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Tech Serve Solutions packs and exports chemicals adhering to international shipping regulations. Specific packaging details are available upon request.
How can I request a sample or quote for 4-Bromobenzenesulfonamide?
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To request a sample or a quote for 4-Bromobenzenesulfonamide, please contact our sales department through the website or via direct inquiry.
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