Description

2,2',4,4'-Tetrabromo-5,5'-Difluorodiphenyl Ether is a halogenated aromatic ether compound, distinguished by its high bromine and fluorine content. This molecular structure is critical for imparting exceptional flame retardancy and thermal stability to advanced polymer systems. It is an essential high-performance additive for manufacturers in the electronics, aerospace, and construction materials sectors requiring stringent fire safety standards.

Application

• As a high-efficiency flame retardant in engineering thermoplastics such as PBT, PET, and polyamides (nylons).
• As a key additive in epoxy resin formulations for printed circuit boards (PCBs) and electronic encapsulants.
• In the production of fire-resistant coatings and paints for industrial and construction applications.
• As a reactive intermediate in the synthesis of more complex halogenated flame retardants and specialty chemicals.
• For enhancing the fire safety performance of wire and cable insulation materials.
• In research and development for new polymer formulations requiring high thermal-oxidative stability.

Basic Information

Product Name	2,2',4,4'-Tetrabromo-5,5'-Difluorodiphenyl Ether
CAS No.	886748-32-9
Molecular Formula	C12H4Br4F2O
Molecular Weight	563.68 g/mol
Synonyms	5,5'-Difluoro-2,2',4,4'-tetrabromodiphenyl ether; Tetrabromodifluorodiphenyl ether; 2,2',4,4'-Tetrabromo-5,5'-difluorobiphenyl ether; BDE-DF-4; Flame Retardant FR-DF-4B; 1,1'-Oxybis(2,4-dibromo-5-fluorobenzene); 5,5'-Difluoro-2,2',4,4'-tetrabromo-1,1'-oxybisbenzene
EINECS	Contact for details

Quality Control

Our production of 2,2',4,4'-Tetrabromo-5,5'-Difluorodiphenyl Ether adheres to a strict quality management system. Every batch is analyzed to ensure high purity and consistency, meeting the precise requirements of advanced polymer applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and can be tailored to meet specific customer or regulatory standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.