Ethylene bis(2-bromoisobutyrate)
Ethylene bis(2-bromoisobutyrate), CAS 248603-11-4, with the molecular formula C10H16Br2O4 and a molecular weight of 360.04 g/mol, is a difunctional initiator primarily employed in Atom Transfer Radical Polymerization (ATRP). It facilitates the creation of polymers with controlled architectures by initiating polymerization from two sites simultaneously, leading to polymers with ester functionality at the core. This compound is crucial for advanced materials science and polymer synthesis.
- IUPAC
- 1,2-Bis(2′-bromoisobutyryloxy)ethane,2f-BiB,Difunctional initiator
- Synonyms
- 2f-BiB1,2-Bis(2′-bromoisobutyryloxy)ethane

Atom Transfer Radical Polymerization (ATRP)
Serves as a difunctional initiator for ATRP, enabling the synthesis of polymers with controlled molecular weights and architectures. It allows for polymerization to occur from two distinct sites, leading to central ester functionality within the polymer chain.
Polymer Synthesis
Used in controlled radical polymerization techniques to produce polymers with specific end-group functionalities and well-defined chain structures. The difunctional nature is advantageous for creating block copolymers or branched polymer architectures.
Materials Science
Enables the development of novel polymeric materials with tailored properties for various advanced applications. Its role as an initiator is key in designing polymers for specialized uses in electronics, coatings, and biomedical fields.
Chemical Synthesis
Acts as a valuable reagent in organic synthesis, particularly for introducing specific structural motifs in polymer backbones or as building blocks for more complex molecules.
| Molecular weight | 360.04 |
|---|---|
| Empirical formula | C10H16Br2O4 |
| Assay | 97% |
| Application | Atom Transfer Radical Polymerization (ATRP) initiator for the creation of difunctional polymers.1,2,3Polymerization will occur at two sites creating a polymer with ester functionality at the center. |
| Melting point | 45-49 °C |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Flash point | >110 °C / >230 °F |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26 |
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 Ethylene bis(2-bromoisobutyrate) used for?
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Ethylene bis(2-bromoisobutyrate) is primarily used as a difunctional initiator in Atom Transfer Radical Polymerization (ATRP) for synthesizing polymers with controlled architectures and central ester functionality.
What is the CAS number and chemical formula for Ethylene bis(2-bromoisobutyrate)?
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The CAS number is 248603-11-4 and the chemical formula is C10H16Br2O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethylene bis(2-bromoisobutyrate) with a purity of 97%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
What are the safety considerations for handling Ethylene bis(2-bromoisobutyrate)?
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Ethylene bis(2-bromoisobutyrate) is classified as dangerous. It has a Danger signal word, with hazard statements H302 (Harmful if swallowed) and H318 (Causes serious eye damage). Precautionary statements include P280 (Wear protective gloves/protective clothing/eye protection/face protection) and P305 + P351 + P338 (IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing). Always handle with appropriate personal protective equipment in a well-ventilated area.
How is Ethylene bis(2-bromoisobutyrate) shipped and exported?
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Tech Serve Solutions exports chemicals globally, adhering to all relevant shipping and customs regulations for hazardous materials. Specific shipping details are provided upon order confirmation.
How can I request a sample or quote for Ethylene bis(2-bromoisobutyrate)?
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To request a sample or a quote, please use the contact form on our website or call our sales team, providing the product name and CAS number (248603-11-4).
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