446255-30-7

Basic information

• Product Name: 2,3,3',4,4',5',6-Heptabromodiphenyl ether
• Synonyms: 1,2,3,5-tetrabromo-4-(3,4,5-tribromophenoxy)benzene
• CAS NO: 446255-30-7
• Molecular Formula: C12H3Br7O
• Molecular Weight: 722.47962
• Product Categories: Aromatics, Pharmaceuticals, Intermediates & Fine Chemicals
• Mol File: 446255-30-7.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,3,3',4,4',5',6-Heptabromodiphenyl ether(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,3',4,4',5',6-Heptabromodiphenyl ether(446255-30-7)
• EPA Substance Registry System: 2,3,3',4,4',5',6-Heptabromodiphenyl ether(446255-30-7)

Safety Data

• Hazardous Substances Data: 446255-30-7(Hazardous Substances Data)

Usage

Uses

Used in Electronics Industry:
2,3,3',4,4',5',6-Heptabromodiphenyl ether is used as a brominated flame retardant (BFR) for enhancing the fire safety of electronic devices and components. Its incorporation into plastics, textiles, and other materials used in the construction of electronic devices helps to slow down the spread of fire, thereby providing an additional layer of protection to users and reducing the risk of accidents.
Used in Textile Industry:
In the textile industry, 2,3,3',4,4',5',6-Heptabromodiphenyl ether is used as a brominated flame retardant to improve the fire resistance of fabrics and other textile products. This is particularly important for materials used in public spaces, such as hotels, restaurants, and theaters, where fire safety is a critical concern.
Used in Construction Industry:
2,3,3',4,4',5',6-Heptabromodiphenyl ether is also utilized in the construction industry as a brominated flame retardant for various building materials, including insulation, wall coverings, and upholstery. Its inclusion in these materials helps to reduce the risk of fire-related accidents and contributes to the overall safety of the built environment.
However, it is important to note that 2,3,3',4,4',5',6-Heptabromodiphenyl ether, like other polybrominated diphenyl ethers, is considered a ubiquitous pollutant due to its widespread use and persistence in the environment. As a result, there is an ongoing debate regarding the potential health and environmental risks associated with the use of these chemicals, and efforts are being made to develop safer alternatives for flame retardancy.

Upstream product

• 958890-06-7 2,3',4,5',6-pentabromo-3,4'-diaminodiphenyl ether 

Relevant articles and documents

Synthesis of octabrominated diphenyl ethers from aminodiphenyl ethers

Polybrominated diphenyl ethers (PBDEs) are additive brominated flame retardants (BFRs), which have become widespread pollutants in abiotic and biotic environments including man. Tetra- to hexaBDEs and decaBDE are the most common environmental PBDE contaminants. Congeners of octabromodiphenyl ethers (octaBDEs) originate from used industrial OctaBDE mixtures and from transformation products of the high-volume industrial BFR mixture "DecaBDE", which most exclusively consists of perbrominated diphenyl ether (BDE-209). The objective of the present work was to develop methods for the synthesis of authentic octaBDE congeners in order to make them available as standards for analytical, toxicological, and stability studies, as well as studies concerning physical-chemical properties. The syntheses of six octaBDEs, 2,2′,3,3′,4,4′,5,5′-octabromodiphenyl ether (BDE-194), 2,2′,3,3′,4,4′,5,6′-octabromodiphenyl ether (BDE-196), 2,2′,3,3′,4,5,5′,6-octabromodiphenyl ether (BDE-198), 2,2′,3,3′,4,5′,6,6′-octabromodiphenyl ether (BDE-201), 2,2′,3,3′,5,5′,6,6′-octabromodiphenyl ether (BDE-202), and 2,2′,3,4,4′,5,6,6′-octabromdipheny ether (BDE-204), are described, of which BDE-204 was prepared via two different pathways. Syntheses of BDE-198, BDE-201, BDE-202, and BDE-204 are based on octabromination of mono- or diaminodiphenyl ethers followed by diazotization and reduction of the amino group(s). BDE-194 and BDE-196 were prepared by bromination of 3,3′,4,4′,5,5′-hexabromodiphenyl ether (BDE-169) and 2,3,3′,4,4′,5′,6-heptabromodiphenyl ether (BDE-191), respectively, and BDE-169 and BDE-191 were prepared from 4,4′- diaminodiphenyl ether and 3,4′-diamiodiphenyl ether, respectively. The synthesized PBDE congeners are described by 1H NMR, 13C NMR, electron ionization mass spectra, and their melting points.