5-Bromobenzofuran
5-Bromobenzofuran (CAS: 23145-07-5; Formula: C8H5BrO) is a halogenated heterocyclic compound with a molecular weight of 197.03 g/mol. It serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecules. Its structure lends itself to various chemical transformations, making it a useful intermediate in the development of novel chemical entities and materials.
- IUPAC
- 5-Bromobenzo[b]furan
- Synonyms
- 5-Bromobenzo[b]furan

Organic Synthesis Intermediate
5-Bromobenzofuran is employed as a key intermediate in the synthesis of diverse organic molecules. It can participate in cross-coupling reactions and other transformations to build complex fused ring systems.
Pharmaceutical Research
This compound is utilised in medicinal chemistry research for the development of potential drug candidates. Its benzofuran core is present in various biologically active compounds.
Materials Science
The molecule's structure can be incorporated into novel materials, potentially influencing their electronic or optical properties in research settings.
| Molecular weight | 197.03 |
|---|---|
| Empirical formula | C8H5BrO |
| Assay | 97% |
| Density | 1.573 g/mL at 25 °C |
| Refractive index | n20/D 1.605 |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H351Suspected of causing cancer
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P281Use personal protective equipment as required
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 5-Bromobenzofuran used for?
+
5-Bromobenzofuran (CAS: 23145-07-5) is primarily used as a building block and intermediate in organic synthesis and pharmaceutical research.
What are the CAS number and formula for 5-Bromobenzofuran?
+
The CAS number for 5-Bromobenzofuran is 23145-07-5, and its molecular formula is C8H5BrO.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 5-Bromobenzofuran with an assay of 97%. This is a technical/research grade material, and we do not represent it as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling considerations for 5-Bromobenzofuran?
+
5-Bromobenzofuran is classified with GHS07 and GHS08 symbols and a 'Warning' signal word. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), may cause respiratory irritation (H335), and is suspected of causing cancer (H351). Handle with appropriate personal protective equipment in a well-ventilated area, following precautions P261, P281, and P305 + P351 + P338.
How is 5-Bromobenzofuran typically packed and shipped?
+
5-Bromobenzofuran is carefully packed to ensure product integrity during transit and is available for export globally by Tech Serve Solutions.
How can I request a sample or quote for 5-Bromobenzofuran?
+
To request a sample or a quote for 5-Bromobenzofuran, please contact our sales team through the website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis