2-Bromomethyl-1,4-benzodioxane
2-Bromomethyl-1,4-benzodioxane (CAS 2164-34-3) is a halogenated heterocyclic compound with the molecular formula C9H9BrO2 and a molecular weight of 229.07 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly for introducing the 1,4-benzodioxane moiety into more complex molecular structures. It finds application in the research and development of novel chemical entities.
- Synonyms
- C9H9BrO22164-34-3

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of various organic compounds. Its reactive bromomethyl group allows for facile derivatisation.
Heterocyclic Chemistry
Serves as a versatile building block in the construction of diverse heterocyclic frameworks, particularly those incorporating the benzodioxane ring system.
Pharmaceutical Research
Employed in medicinal chemistry research for the development of potential therapeutic agents, leveraging its unique structural features.
| Molecular weight | 229.07 |
|---|---|
| Empirical formula | C9H9BrO2 |
| Assay | 97% |
| Boiling point | 250-251 °C(lit.) |
| Density | 1.533 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5720(lit.) |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3082 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 36-51/53 |
| Safety statements (S) | 26-60-61 |
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-Bromomethyl-1,4-benzodioxane used for?
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2-Bromomethyl-1,4-benzodioxane (CAS 2164-34-3) is primarily used as an intermediate in organic synthesis and heterocyclic chemistry research, and in pharmaceutical research.
What is the CAS number and formula for 2-Bromomethyl-1,4-benzodioxane?
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The CAS number is 2164-34-3 and the empirical formula is C9H9BrO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Bromomethyl-1,4-benzodioxane with a minimum assay of 97%. This is considered a technical/research grade and is not represented as USP, BP, or EP.
How should 2-Bromomethyl-1,4-benzodioxane be handled safely?
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Caution is advised when handling 2-Bromomethyl-1,4-benzodioxane due to its potential to cause eye irritation (H319). Use appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. It is classified as Xi (Irritant) and N (Hazardous to the environment).
Is 2-Bromomethyl-1,4-benzodioxane a controlled substance?
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The provided data does not indicate that 2-Bromomethyl-1,4-benzodioxane is a controlled substance.
How is 2-Bromomethyl-1,4-benzodioxane packed and shipped?
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2-Bromomethyl-1,4-benzodioxane is shipped as UN 3082, 9, PGIII, signifying it is an environmentally hazardous substance, liquid, n.o.s. Specific packing details are available upon request.
How can I request a quote or sample of 2-Bromomethyl-1,4-benzodioxane?
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Please contact our sales team or use the online enquiry form to request a quote or sample of 2-Bromomethyl-1,4-benzodioxane.
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