Pentabromodiphenyl ether

Pentabromodiphenyl ether (also known as pentabromodiphenyl oxide) is a brominated flame retardant which belongs to the group of polybrominated diphenyl ethers (PBDEs). Because of their toxicity and persistence, their industrial production is to be eliminated under the Stockholm Convention, a treaty to control and phase out major persistent organic pollutants (POP).

Pentabromodiphenyl ether

General chemical structure of pentabromodiphenyl ethers, where n + m = 5
Names
Other names
PentaBDE; Penta-BDE; PeBDE; Penta; PBDPO; Pentabromobiphenyl ether
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.046.425
EC Number
  • 251-084-2
KEGG
RTECS number
  • DD6625350
UNII
UN number 3152 3077
  • 2,2',4,4',5: InChI=1S/C12H5Br5O/c13-6-1-2-11(9(16)3-6)18-12-5-8(15)7(14)4-10(12)17/h1-5H
    Key: WHPVYXDFIXRKLN-UHFFFAOYSA-N
  • 2,2′,4,4′,6: InChI=1S/C12H5Br5O/c13-6-1-2-11(8(15)3-6)18-12-9(16)4-7(14)5-10(12)17/h1-5H
    Key: NSKIRYMHNFTRLR-UHFFFAOYSA-N
  • 2,2',4,4',5: C1=CC(=C(C=C1Br)Br)OC2=CC(=C(C=C2Br)Br)Br
  • 2,2′,4,4′,6: C1=CC(=C(C=C1Br)Br)OC2=C(C=C(C=C2Br)Br)Br
Properties
C12H5Br5O
Molar mass 564.691 g·mol−1
Appearance Viscous white to amber-colored liquid
Density 2.25-2.28 g/cm3
Melting point −7 to 3 °C (19 to 37 °F; 266 to 276 K)
Boiling point Decomposes
not soluble
Hazards
GHS labelling:
Warning
H362, H373, H410
Lethal dose or concentration (LD, LC):
5000 mg/kg (oral, rat)
Related compounds
octabromodiphenyl ether, decabromodiphenyl ether
Related compounds
 diphenylether
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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