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2,2',4,4',5,5'-hexabromodiphenyl ether

Also known as: 2,2',4,4',5,5'-HexaBDE, PBDE 153, BDE 153, 1,1'-oxybis(2,4,5-tribromobenzene), 1,2,4-tribromo-5-(2,4,5-tribromophenoxy)benzene

2,2',4,4',5,5'-hexabromodiphenyl ether (CAS 68631-49-2) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C12H4Br6O and a molecular weight of 643.58400 g/mol. Key properties include a boiling point of 471.1ºC at 760 mmHg, a density of 2.502g/cm3 and a flash point of -12ºC. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H304 and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68631-49-2
Jingsj CID
J-1498577-1
Molecular Formula
C12H4Br6O
Molecular Weight
643.58400 g/mol
Category
Ethers
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point471.1ºC at 760 mmHg
Density2.502g/cm3
Flash Point-12ºC
Exact Mass637.53600
PSA9.23000
LogP8.05390
Refractive Index1.695
Storage Conditions2-8°C

GHS Safety & Compliance

Flammable / Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H304
  • H315 — Causes skin irritation
  • H336 — May cause drowsiness or dizziness
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of 2,2',4,4',5,5'-hexabromodiphenyl ether?

The CAS number of 2,2',4,4',5,5'-hexabromodiphenyl ether is 68631-49-2.

What are the molecular formula and molecular weight of 2,2',4,4',5,5'-hexabromodiphenyl ether?

2,2',4,4',5,5'-hexabromodiphenyl ether has molecular formula C12H4Br6O and molecular weight 643.58400 g/mol.

Is 2,2',4,4',5,5'-hexabromodiphenyl ether hazardous?

2,2',4,4',5,5'-hexabromodiphenyl ether has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H304; H315 — Causes skin irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,2',4,4',5,5'-hexabromodiphenyl ether (CAS 68631-49-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498577-1 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.