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2,2',4,5'-Tetrabromodiphenyl ether

Also known as: BDE-49, PBDE 49, 1,4-Dibromo-2-(2,4-dibromophenoxy)benzene, 2,2',4,5'-TetraBDE, 2,4-Dibromophenyl 2,5-dibromophenyl ether, (2,4-Dibromophenyl)(2,5-dibromophenyl) ether, Benzene, 1,4-dibromo-2-(2,4-dibromophenoxy)-, 2,2',4,5'-Tetrabromodiphenyl ether solution, BDE No 49 solution

2,2',4,5'-Tetrabromodiphenyl ether (CAS 243982-82-3) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C12H6Br4O and a molecular weight of 485.791 g/mol. Key properties include a boiling point of 397.0±42.0 °C at 760 mmHg, a density of 2.2±0.1 g/cm3 and a flash point of 163.5±26.4 °C. 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.
243982-82-3
Jingsj CID
J-1106024-4
Molecular Formula
C12H6Br4O
Molecular Weight
485.791 g/mol
Category
Ethers
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point397.0±42.0 °C at 760 mmHg
Density2.2±0.1 g/cm3
Flash Point163.5±26.4 °C
Exact Mass481.715179
PSA9.23000
LogP7.47
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.665
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',4,5'-Tetrabromodiphenyl ether?

The CAS number of 2,2',4,5'-Tetrabromodiphenyl ether is 243982-82-3.

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

2,2',4,5'-Tetrabromodiphenyl ether has molecular formula C12H6Br4O and molecular weight 485.791 g/mol.

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

2,2',4,5'-Tetrabromodiphenyl 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',4,5'-Tetrabromodiphenyl ether (CAS 243982-82-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1106024-4 (accessed 2026-11-07).

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