Phosphorus(V) oxybromide
Phosphorus(V) oxybromide (CAS: 7789-59-5), with the linear formula POBr₃ and a molecular weight of 286.69 g/mol, is a chemical compound supplied by Tech Serve Solutions. This compound serves as a valuable reagent in organic synthesis, particularly for bromination reactions and as a building block in the formation of carbon-halogen bonds. Its distinct chemical properties make it useful in various research and industrial chemical synthesis applications.
- IUPAC
- Phosphorus oxide bromide,Phosphoryl bromide
- Synonyms
- Phosphorus oxide bromidePhosphoryl bromide

Brominating Agent
Phosphorus(V) oxybromide is utilised as a brominating agent in organic chemistry. It facilitates the introduction of bromine atoms into organic molecules, which is a crucial step in the synthesis of various intermediates.
Synthetic Building Block
This compound functions as a key building block in the synthesis of more complex organic structures. Its reactivity allows for its incorporation into diverse molecular frameworks.
C-X Bond Formation
Phosphorus(V) oxybromide is employed in the formation of carbon-halogen (C-X) bonds, specifically C-Br bonds. This process is fundamental in the preparation of organobromine compounds used in pharmaceuticals and materials science.
Chemical Synthesis Reagent
As a synthetic reagent, it finds application in diverse chemical synthesis pathways. Its predictable reactivity makes it a reliable choice for chemists undertaking complex synthetic projects.
| Molecular weight | 286.69 |
|---|---|
| Linear formula | POBr3 |
| Assay | ≥98.5% (AT) |
| Boiling point | 192 °C(lit.) |
| Density | 2.82 g/mL at 25 °C(lit.) |
| Storage temperature | 2-8°C |
| Melting point | 56 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1939 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-34 |
| Safety statements (S) | 26-36/37/39-45-Neverusewater. |
| 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 Phosphorus(V) oxybromide used for?
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Phosphorus(V) oxybromide is used as a brominating agent, a building block in organic synthesis, for the formation of C-Br bonds, and as a general chemical synthesis reagent.
What is the CAS number and formula for Phosphorus(V) oxybromide?
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The CAS number is 7789-59-5, and its linear formula is POBr₃.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phosphorus(V) oxybromide with an assay of ≥98.5% (AT). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the key safety concerns when handling Phosphorus(V) oxybromide?
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Phosphorus(V) oxybromide is a corrosive substance that reacts violently with water, releasing hazardous fumes. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential. Handling should occur in a well-ventilated area, and contact with water must be strictly avoided.
How is Phosphorus(V) oxybromide shipped and exported?
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Phosphorus(V) oxybromide is shipped and exported in compliance with relevant transportation regulations, identified under UN 1939, Hazard Class 8, Packing Group II.
How can I request a sample or quote for Phosphorus(V) oxybromide?
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To request a sample or a quotation, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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