5-Bromo-1,2,3,4,5-pentaphenyl-1,3-cyclopentadiene
5-Bromo-1,2,3,4,5-pentaphenyl-1,3-cyclopentadiene (CAS 56849-84-4), a brominated organic compound with the molecular formula C35H25Br, serves as a valuable precursor in synthetic chemistry. This halogenated hydrocarbon is primarily utilised in the preparation of ferrocenes, contributing to the synthesis of organometallic compounds. With a molecular weight of 525.48, it is supplied by Tech Serve Solutions for research and development purposes.
- Synonyms
- 4,5-pentaphenyl-1,3-cyclopentadiene,56849-84-4, C35H25Br

Ferrocene Synthesis
5-Bromo-1,2,3,4,5-pentaphenyl-1,3-cyclopentadiene is a documented intermediate in the preparation of ferrocenes. Its structure allows for further functionalisation to create novel organometallic complexes.
Organic Synthesis Building Block
As a halogenated organic molecule, it functions as a versatile building block in complex organic synthesis pathways. The bromine atom provides a reactive site for various coupling reactions and transformations.
Research and Development
This compound is employed in laboratory settings for investigating new chemical reactions and developing novel materials. Its specific structure makes it a subject of interest in academic and industrial research.
| Molecular weight | 525.48 |
|---|---|
| Empirical formula | C35H25Br |
| Assay | 90% |
| Application | 5-Bromo-1,2,3,4,5-pentaphenyl-1,3-cyclopentadiene was used in preparation of ferrocenes.1 |
| Melting point | 188-190 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-Bromo-1,2,3,4,5-pentaphenyl-1,3-cyclopentadiene used for?
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It is primarily used as a precursor in the preparation of ferrocenes and as a building block in organic synthesis for research and development purposes.
What are the CAS number and molecular formula for this compound?
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The CAS number is 56849-84-4, and the empirical formula is C35H25Br.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 90%. It is supplied for research and technical use and is not represented as USP, BP, EP, or other pharmacopoeial grades.
What safety precautions should be taken when handling 5-Bromo-1,2,3,4,5-pentaphenyl-1,3-cyclopentadiene?
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When handling, it is recommended to use eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used, and care should be taken as indicated by GHS hazard information, including its WGK classification of 3.
Is this product available for international export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents.
How can I request a quote or sample?
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To request a quote or sample, please contact the Tech Serve Solutions sales team via the website or direct inquiry channels.
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