Pentabromodiphenyl ether

Pentabromodiphenyl ether
	General chemical structure of pentabromodiphenyl ethers, where n + m = 5
Names
	Other names PentaBDE; Penta-BDE; PeBDE; Penta; PBDPO; Pentabromobiphenyl ether
Identifiers
CAS Number	32534-81-9 ; 2,2',4,4',5: 60348-60-9 ; 2,2′,4,4′,6: 189084-64-8 ;
3D model (JSmol)	2,2',4,4',5: Interactive image; 2,2′,4,4′,6: Interactive image;
ChEBI	2,2',4,4',5: CHEBI:81582; 2,2′,4,4′,6: CHEBI:138065;
ChEMBL	2,2',4,4',5: ChEMBL374400;
ChemSpider	2,2',4,4',5: 33255;
ECHA InfoCard	100.046.425
EC Number	251-084-2;
KEGG	2,2',4,4',5: C18203;
PubChem CID	2,2',4,4',5: 36159; 2,2′,4,4′,6: 154083;
RTECS number	DD6625350;
UNII	7REL09ZX35 ; 2,2',4,4',5: D3A2T91I1E ; 2,2′,4,4′,6: YW2W2K0A6U ;
UN number	3152 3077
CompTox Dashboard (EPA)	DTXSID2024246 ;
	InChI 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;
	SMILES 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
Chemical formula	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
Solubility in water	not soluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H362, H373, H410
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5000 mg/kg (oral, rat)
Related compounds
Related polybrominated diphenyl ethers	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). verify (what is ?) Infobox references

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).