207122-15-4

Basic information

• Product Name: 2,2',4,4',5,6'-HEXABROMODIPHENYL ETHER
• Synonyms: 2,2',4,4',5,6'-HEXABROMODIPHENYL ETHER;BDE-154;BDE No 154 solution;PBDE 154, 2,2μ,4,4μ,5,6μ-Hexabromodiphenyl ether solution;2,2',4,4',5,6'-Hexabromodiphenyl ether,50 μL/mL in Isooctane;Benzene, 1,3,5-tribromo-2-(2,4,5-tribromophenoxy)-;1,3,5-Tribromo-2-(2,4,5-tribromophenoxy)benzene;1,2,4-tribromo-5-(2,4,6-tribromophenoxy)benzene
• CAS NO: 207122-15-4
• Molecular Formula: C₁₂H₄Br₆O
• Molecular Weight: 643.58356
• EINECS: 208-759-1
• Mol File: 207122-15-4.mol
• Article Data: 2

Chemical Properties

• Melting Point: 137.5-138.5 °C(Solv: tetrahydrofuran (109-99-9); acetonitrile (75-05-8))
• Boiling Point: 453.2oC at 760 mmHg
• Flash Point: -12 °C
• Appearance: /
• Density: 2.502g/cm3
• Vapor Pressure: 5.64E-08mmHg at 25°C
• Refractive Index: 1.695
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 2,2',4,4',5,6'-HEXABROMODIPHENYL ETHER(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2',4,4',5,6'-HEXABROMODIPHENYL ETHER(207122-15-4)
• EPA Substance Registry System: 2,2',4,4',5,6'-HEXABROMODIPHENYL ETHER(207122-15-4)

Safety Data

• Hazard Codes: F,Xn,N
• Statements: 11-38-50/53-65-67
• Safety Statements: 60-61-62-33-29-16-9
• RIDADR: UN 1262 3/PG 2
• WGK Germany: 2
• Hazardous Substances Data: 207122-15-4(Hazardous Substances Data)

Usage

General Description

2,2',4,4',5,6'-Hexabromodiphenyl ether, also known as HBDE-138, is a synthetic chemical compound used as a flame retardant in various consumer products, including electronics, textiles, and plastics. It belongs to the polybrominated diphenyl ethers (PBDEs) class of chemicals, which are known for their ability to reduce the flammability of materials. However, HBDE-138 has been identified as a persistent organic pollutant (POP) and has been banned or restricted in many countries due to its potential adverse effects on human health and the environment. Studies have linked exposure to HBDE-138 to developmental and reproductive toxicity, as well as potential carcinogenic properties. It is important to handle and dispose of products containing HBDE-138 carefully and to seek alternatives to reduce the potential risks associated with this chemical.

InChI:InChI=1/C12H4Br6O/c13-5-1-9(17)12(10(18)2-5)19-11-4-7(15)6(14)3-8(11)16/h1-4H

Upstream product

• 615-54-3 1,2,4-tribromobenzene 
• 118-79-6 2,4,6-tribromophenol 

Relevant articles and documents

Synthesis and characterization of 32 polybrominated diphenyl ethers

Polybrominated diphenyl ethers (PBDEs) are widely used as additive flame retardants in, for example, textiles, computers, television sets, and other electrical appliances. present also in humans. The environmental levels of the PBDEs are, however, still in general lower than those of polychlorinated biphenyls (PCBs). However, while the levels of PCBs generally are decreasing, those of the PBDEs are increasing in, for example, human milk. In the present study 32 individual PBDE congeners were synthesized and characterized. Physicochemical parameters including melting points and UV, 1H NMR, and mass spectra are reported Twenty-nine monobrominated to heptabrominated diphenyl ethers were synthesized by the couping between four diphenyliodonium salts and nine phenolates. One tetrabromodiphenyl ether and two hexabromodiphenyl ethers were synthesized by bromination of two different PBDEs. Twenty-one of the PBDEs and two of the iodonium salts, 2,2′,4,4′-tetrabromodiphenyliodonium chloride and 3,3′,4,4′-tatrabromodiphenyliodonium chloride, are to the authors' knowledge described for the first time. These synthesized reference compounds will aid in the identification and quantification of PBDEs present in environmental samples and will allow further assessment of PBDE toxicity.