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Aromatic building blocks

4-Bromodiphenyl ether

Also known as 1-Bromo-4-phenoxybenzene, 4-Bromophenyl phenyl ether, 4-Bromophenoxybenzene

CAS 101-55-3Formula C12H9BrOMolar mass 249.11 g/molEC 202-952-4
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 18 suppliers listed
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4-Bromodiphenyl ether chemical structure, C12H9BrO, CAS 101-55-3
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Melting point
18.7 °C
Boiling point
310.1 °C
Density
1.6088 @ 20 °C/4 °C
Flash point
>112.2
HS code
290930
Category
Aromatic building blocks
UN number
UN 3082
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 4-Bromodiphenyl ether?

Plain description, key identifiers and synonyms

4-bromophenyl phenyl ether is an aromatic ether that is diphenyl ether substituted at position 4 by a bromo group. It is an aromatic ether and an organobromine compound. It is functionally related to a diphenyl ether.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-bromo-4-phenoxybenzene
CAS number
101-55-3 CAS number cross-checked
EC number
202-952-4
Molecular formula
C12H9BrO
UNII
N19SE3QCFN
MDL number
MFCD00000094
InChIKey
JDUYPUMQALQRCN-UHFFFAOYSA-N
InChI
InChI=1S/C12H9BrO/c13-10-6-8-12(9-7-10)14-11-4-2-1-3-5-11/h1-9H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)OC2=CC=C(C=C2)Br

Synonyms

  • 1-Bromo-4-phenoxybenzene
  • 4-Bromophenyl phenyl ether
  • 4-Bromophenoxybenzene
  • p-Bromodiphenyl ether
  • Benzene, 1-bromo-4-phenoxy-
  • p-Phenoxybromobenzene
  • p-Bromophenoxybenzene
  • p-Bromophenyl phenyl ether
  • Ether, p-bromophenyl phenyl
  • Phenyl ether, 4-bromo-
  • Diphenyl ether, 4-bromo-
  • Ether, 4-bromophenyl phenyl
  • Phenyl (4-bromophenyl) ether
  • p-(Phenoxy)bromobenzene
  • 4-Phenoxy-1-bromobenzene
  • p-Phenoxyphenyl bromide
  • 4-phenoxyphenyl bromide
  • 4-Bromodiphenylether
  • PBDE 3
  • 1-bromo-4-phenoxy-benzene
  • 4-phenoxybromobenzene
  • 4-Bromodiphenyl ester
  • PBDE No. 3
  • 4-Bromophenoxybenzene, 4-Bromodiphenyl ester
  • 4-bromo-1-phenoxybenzene
Show all 33 synonyms
  • 4-Bromodiphenyl ether, 99%
  • p-Bromphenyl phenyl ether
  • RCRA waste no. U030
  • 4-Bromodiphenyloxide
  • 11 -Bromo-4-phenoxybenzene
  • Jduypumqalqrcn-uhfffaoysa-
  • PBDE No. 3 100 |Ig/mL in Methanol
  • 1-Bromo-4-phenoxybenzene, p-Bromophenyl phenyl ether, 4-Bromophenylphenylether

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Liquidexp.
Melting point
18.7 °Cexp.
Boiling point
310.1 °Cexp.
Density
1.6088 @ 20 °C/4 °Cexp.
Flash point
>112.2exp.
Solubility
Insol in waterexp.
Vapour pressure
0.0015 torr @ 20 °C (calc)exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
249.11 g/molcalc.
Exact mass
247.9837 Dacalc.
LogP (octanol/water)
4.24calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
14calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(Oc2ccccc2)cc1

c1ccc(Oc2ccccc2)cc1

2 rings, 13 atoms, the Diphenyl ether ring system.

9,579 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H318Causes serious eye damage.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (17)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3082

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

4-Bromodiphenyl ether suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 18 suppliers
18 of 18 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

18 suppliers in 6 countries

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4-Bromodiphenyl ether price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Research chemical.

Used as flame retardant additives in polymers. (Former use).

How it is made

Some halogenated diphenyl ethers can be prepared by direct halogenation of diphenyl ether catalyzed by lewis acids & by deamination of nitro- & amino-substituted diphenyl ethers. (Halogenated diphenyl ethers)

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Significant new use rule

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 4-Bromodiphenyl ether is traded under.

HS 2909.30Indicative HS code

Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives

World exports in 2024
$470M
−2.2% vs 2023, imports $432M
2019 to 2024
Top exporters
  1. China45.7%
  2. Germany15.7%
  3. India * partner reported9.9%
Top importers
  1. United States14.3%
  2. China11.8%
  3. India * partner reported8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 4-Bromodiphenyl ether is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Bromodiphenyl ether, based on the data on this page

What is 4-Bromodiphenyl ether?

4-bromophenyl phenyl ether is an aromatic ether that is diphenyl ether substituted at position 4 by a bromo group. It is an aromatic ether and an organobromine compound. It is functionally related to a diphenyl ether.

What is the CAS number of 4-Bromodiphenyl ether?

The CAS registry number of 4-Bromodiphenyl ether is 101-55-3.

What is the molecular formula and weight of 4-Bromodiphenyl ether?

The molecular formula of 4-Bromodiphenyl ether is C12H9BrO and its molar mass is 249.11 g/mol.

What is 4-Bromodiphenyl ether used for?

Research chemical. Used as flame retardant additives in polymers. (Former use).

Is 4-Bromodiphenyl ether hazardous?

4-Bromodiphenyl ether carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause an allergic skin reaction, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 4-Bromodiphenyl ether?

4-Bromodiphenyl ether is usually classified under HS code 290930 (Aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Bromodiphenyl ether?

CompoundList lists 18 suppliers of 4-Bromodiphenyl ether in China, United States, India, Bulgaria and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 4-Bromodiphenyl ether in India?

2 suppliers in India list 4-Bromodiphenyl ether on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 4-Bromodiphenyl ether?

Suppliers quote 4-Bromodiphenyl ether on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 4-Bromodiphenyl ether

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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