2,4-Dibromobutyryl chloride
2,4-Dibromobutyryl chloride (CAS 82820-87-9) is a specialised organic compound with the molecular formula BrCH2CH2CHBrCOCl and a molecular weight of 264.34 g/mol. This acid halide serves as a valuable building block in organic synthesis, facilitating the introduction of complex functional groups. Its reactivity makes it suitable for diverse chemical research and development applications, particularly in the creation of novel molecular structures. Tech Serve Solutions supplies this compound for laboratory and industrial research purposes.
- Synonyms
- BrCH2CH2CHBrCOCl

Organic Synthesis Intermediate
2,4-Dibromobutyryl chloride is employed as a key intermediate in multi-step organic syntheses. Its two bromine atoms and acyl chloride functionality allow for versatile reactions in the construction of more complex molecules.
Building Block for Heterocycles
This compound can be utilised in the synthesis of various heterocyclic compounds, which are important scaffolds in medicinal chemistry and materials science.
Research and Development
It is a useful reagent for academic and industrial R&D laboratories exploring new chemical entities and reaction pathways.
| Molecular weight | 264.34 |
|---|---|
| Linear formula | BrCH2CH2CHBrCOCl |
| Assay | ~90% (GC) |
| Density | 2.00 g/mL at 20 °C |
| Refractive index | n20/D 1.535 |
| Storage temperature | 2-8°C |


Hazard statements
- H314Causes severe skin burns and eye damage
- H317May cause an allergic skin reaction
- H334May cause allergy or asthma symptoms if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-34-42/43 |
| Safety statements (S) | 23-26-36/37/39-45 |
| Supplemental hazards | Reacts violently with water. |
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 2,4-Dibromobutyryl chloride used for?
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2,4-Dibromobutyryl chloride is primarily used as a building block and intermediate in organic synthesis for research and development purposes, including the synthesis of heterocyclic compounds.
What is the CAS number and formula for 2,4-Dibromobutyryl chloride?
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The CAS number is 82820-87-9 and the linear formula is BrCH2CH2CHBrCOCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4-Dibromobutyryl chloride with an assay of approximately 90% (GC). This is a technical grade suitable for research and is not represented as USP, BP, or EP grade.
How should 2,4-Dibromobutyryl chloride be handled safely?
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2,4-Dibromobutyryl chloride is a corrosive substance that reacts violently with water. It can cause severe skin burns and eye damage, and may cause respiratory irritation. Appropriate personal protective equipment, including face shields, chemical-resistant gloves, and respirators, must be used. Handle in a well-ventilated area and avoid contact with water. Consult the Safety Data Sheet for full details.
How is 2,4-Dibromobutyryl chloride packed and shipped?
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This product is typically packed in UN-approved containers suitable for corrosive materials and shipped according to international regulations for hazardous goods (UN 3265, Class 8, PG II). We export globally.
How can I request a quote or sample?
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To request a quote or a sample of 2,4-Dibromobutyryl chloride, please contact our sales team through the website or by telephone. Provide your contact details and the quantity required.
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