3,5-Dimethylbenzyl bromide
3,5-Dimethylbenzyl bromide (CAS: 27129-86-8), with the empirical formula C9H11Br and a molecular weight of 199.09 g/mol, is a halogenated hydrocarbon. It serves as a valuable building block in organic synthesis. Its reactive benzylic bromide functionality makes it suitable for introducing the 3,5-dimethylbenzyl group into various organic molecules, finding utility in the development of novel compounds and research applications.
- IUPAC
- α-Bromomesitylene,1-(Bromomethyl)-3,5-dimethylbenzene
- Synonyms
- 1-(Bromomethyl)-3,5-dimethylbenzeneα-Bromomesitylene

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of more complex organic molecules. The benzylic bromide moiety readily participates in nucleophilic substitution reactions.
Building Block for Specialty Chemicals
Serves as a versatile building block for the creation of specialty chemicals and advanced materials in research and development settings.
Reagent in Chemical Research
Employed in academic and industrial laboratories for the preparation of target compounds, enabling structure-activity relationship studies and probe development.
| Molecular weight | 199.09 |
|---|---|
| Empirical formula | C9H11Br |
| Assay | ≥97.0% (GC) |
| Melting point | 37-39 °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
| 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 3,5-Dimethylbenzyl bromide used for?
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3,5-Dimethylbenzyl bromide is primarily used as an intermediate and building block in organic synthesis, particularly for introducing the 3,5-dimethylbenzyl group into organic molecules for research and chemical development.
What are the CAS number and formula for 3,5-Dimethylbenzyl bromide?
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The CAS number for 3,5-Dimethylbenzyl bromide is 27129-86-8, and its empirical formula is C9H11Br.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dimethylbenzyl bromide with an assay of ≥97.0% (GC). We do not represent this product as USP, BP, or EP grade.
How should 3,5-Dimethylbenzyl bromide be handled?
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3,5-Dimethylbenzyl bromide is classified as Danger, causing severe skin burns and eye damage (H314). Handle with extreme caution, using appropriate personal protective equipment, including gloves, eye protection, and protective clothing. Ensure adequate ventilation. In case of contact, rinse cautiously with water for several minutes and seek immediate medical attention.
Is 3,5-Dimethylbenzyl bromide a controlled substance?
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The provided data does not indicate that 3,5-Dimethylbenzyl bromide is a controlled substance.
How is 3,5-Dimethylbenzyl bromide packed and shipped?
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3,5-Dimethylbenzyl bromide is shipped according to IATA regulations for dangerous goods (UN 3261, Class 8, Packing Group II). Specific packaging details are available upon request.
How can I request a quote or sample of 3,5-Dimethylbenzyl bromide?
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To request a quote or sample, please contact the Tech Serve Solutions sales team via our website or direct inquiry channels.
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