Oxalyl bromide
Oxalyl bromide (CAS: 15219-34-8), with the linear formula BrCOCOBr and a molecular weight of 215.83 g/mol, is a key reagent in organic synthesis. It is a colourless to yellow liquid, with a high refractive index and specific gravity. This compound is particularly useful for introducing the oxalyl group and in various halogenation and acylation reactions. It requires careful handling due to its reactive nature, especially with moisture.
- IUPAC
- Ethanedioyl dibromide,NSC 96957
- Synonyms
- Ethanedioyl dibromideNSC 96957
Cyclopentanedione Bromination
Oxalyl bromide is employed to convert cyclopentane-1,3-dione into 3-bromocyclopenten-2-one. This transformation is a valuable step in the synthesis of various organic intermediates.
Synthetic Reagent
As a versatile synthetic reagent, oxalyl bromide is utilised in a range of organic transformations, including acylation and halogenation reactions. Its reactivity makes it useful for preparing complex molecules.
Preparation of Acid Bromides
It can be used in the synthesis of other acid bromides from carboxylic acids, acting as a brominating agent in these conversions.
| Molecular weight | 215.83 |
|---|---|
| Linear formula | BrCOCOBr |
| Assay | 97% |
| Boiling point | 16-17 °C/10 mmHg(lit.) |
| Density | 1.517 g/mL at 25 °C |
| Refractive index | n20/D 1.522(lit.) |
| Concentration | 2.0 M in methylene chloride |
| Melting point | −19 °C(lit.) |
| Storage temperature | 2-8°C |
| Application | Converts cyclopentane-1,3-dione to 3-bromocyclopenten-2-one.7 |
Hazard statements
- H314Causes severe skin burns and eye damage
- H332Harmful if inhaled
Precautionary statements
- 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 2922 6.1(8) / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-20-29-34 |
| Safety statements (S) | 26-36/37/39-45 |
| Supplemental hazards | Contact with water liberates toxic gas., 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 Oxalyl bromide used for?
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Oxalyl bromide is used as a reagent in organic synthesis, notably for converting cyclopentane-1,3-dione to 3-bromocyclopenten-2-one, and in other acylation and halogenation reactions.
What are the CAS number and formula for Oxalyl bromide?
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The CAS number for Oxalyl bromide is 15219-34-8, and its linear formula is BrCOCOBr.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Oxalyl bromide with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should Oxalyl bromide be handled safely?
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Oxalyl bromide is a corrosive substance that reacts violently with water, liberating toxic gas. Handle with extreme caution, using appropriate personal protective equipment including a faceshield, respirator, gloves, and goggles. Work in a well-ventilated area.
How is Oxalyl bromide packed and shipped?
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Oxalyl bromide is packed and shipped in compliance with international regulations for hazardous materials. Storage is recommended at 2-8°C.
How can I request a quote or sample of Oxalyl bromide?
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To request a quote or sample of Oxalyl bromide, please contact our sales team through the website or by phone.
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