N-(4-Bromophenyl)methanesulfonamide
N-(4-Bromophenyl)methanesulfonamide (CAS 4284-50-8) is a chemical compound with a molecular weight of 250.11 g/mol. It functions as a valuable building block in organic synthesis, particularly within the fields of chemical research and development. This sulfonamide derivative offers a unique structural motif for creating more complex molecules and is supplied by TSS for laboratory and industrial applications.
- IUPAC
- 4-(Methylsulfonylamido)bromobenzene
- Synonyms
- 4-(Methylsulfonylamido)bromobenzene

Organic Synthesis Intermediate
This compound serves as a key intermediate in the synthesis of novel organic molecules. Its structure, featuring both a sulfonamide and a bromophenyl group, allows for diverse chemical transformations.
Research and Development
N-(4-Bromophenyl)methanesulfonamide is utilised in research laboratories for the exploration of new chemical pathways and the development of advanced materials. Its properties make it suitable for structure-activity relationship studies.
Building Block for Specialty Chemicals
As an organic building block, it is employed in the creation of speciality chemicals. The presence of the bromine atom offers a handle for cross-coupling reactions and other functional group interconversions.
| Molecular weight | 250.11 |
|---|---|
| Linear formula | BrC6H4NHSO2CH3 |
| Assay | 97% |
| Melting point | 137-141 °C |

Hazard statements
- H302Harmful if swallowed
- 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) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36/37 |
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 N-(4-Bromophenyl)methanesulfonamide used for?
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N-(4-Bromophenyl)methanesulfonamide is primarily used as a building block in organic synthesis and in research and development for creating more complex chemical entities.
What is the CAS number and chemical formula for N-(4-Bromophenyl)methanesulfonamide?
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The CAS number is 4284-50-8. The linear chemical formula is BrC6H4NHSO2CH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N-(4-Bromophenyl)methanesulfonamide with an assay of 97%. TSS does not represent this product as USP, BP, or EP grade; it is suitable for research and laboratory use.
How should N-(4-Bromophenyl)methanesulfonamide be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid dust formation and breathing dust; ensure adequate ventilation. This compound is classified as harmful if swallowed and causes skin, eye, and respiratory irritation (H302-H315-H319-H335).
Is N-(4-Bromophenyl)methanesulfonamide a controlled substance?
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The provided data does not indicate that N-(4-Bromophenyl)methanesulfonamide is a controlled substance.
How is N-(4-Bromophenyl)methanesulfonamide packed and shipped?
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N-(4-Bromophenyl)methanesulfonamide is carefully packed according to international shipping regulations for chemical compounds and is exported globally by TSS.
How can I request a sample or quote for N-(4-Bromophenyl)methanesulfonamide?
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To request a sample or a quote, please contact the TSS sales team through the website or by phone, providing your specific requirements and shipping details.
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