4,4'-Dibromodiphenyl ether

Also known as: 1,1'-Oxybis(4-bromobenzene), 1-bromo-4-(4-bromophenoxy)benzene, 4,4'-DiBDE, 4-Bromophenyl ether, Bis(4-bromophenyl) ether, Bis(p-bromophenyl) ether, Benzene, 1,1'-oxybis[4-bromo-, EINECS 218-090-7, PBDE 15, p,p'-Dibromodiphenyl ether, para-bromophenyl ether

4,4'-Dibromodiphenyl ether (CAS 2050-47-7) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C12H8Br2O and a molecular weight of 327.999 g/mol. Key properties include a melting point of 61-63 °C(lit.), a boiling point of 339.0±0.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 140.3±19.4 °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.: 2050-47-7
Jingsj CID: J-1321240-3
Molecular Formula: C₁₂H₈Br₂O
Molecular Weight: 327.999 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	61-63 °C(lit.)
Boiling Point	339.0±0.0 °C at 760 mmHg
Density	1.7±0.1 g/cm3
Flash Point	140.3±19.4 °C
Exact Mass	325.894165
PSA	9.23000
LogP	6.01
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.626

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

Customs & Trade Information

HS Code	2903999090
Summary	2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-Dibromodiphenyl ether?

The CAS number of 4,4'-Dibromodiphenyl ether is 2050-47-7.

What are the molecular formula and molecular weight of 4,4'-Dibromodiphenyl ether?

4,4'-Dibromodiphenyl ether has molecular formula C12H8Br2O and molecular weight 327.999 g/mol.

Is 4,4'-Dibromodiphenyl ether hazardous?

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

What are the upstream and downstream products of 4,4'-Dibromodiphenyl ether?

For 4,4'-Dibromodiphenyl ether, Upstream Products: Diphenyl ether, 1,2-dichloroethane, 1-Bromo-4-iodobenzene; Downstream Products: 4,4'-Oxybisbenzoic acid, 4-(4-bromophenoxy)benzoic acid, 4-Ethynylphenyl ether.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4'-Dibromodiphenyl ether (CAS 2050-47-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1321240-3 (accessed 2026-11-06).

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