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Synthetic aroma chemicals

Phenethyl bromide

Also known as (2-Bromoethyl)benzene, 2-Phenylethyl bromide, Phenylethyl bromide

CAS 103-63-9Formula C8H9BrMolar mass 185.06 g/molEC 203-130-8
GHS signal word: Warning. Pictograms: Harmful or irritant 27 suppliers listed
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Phenethyl bromide chemical structure, C8H9Br, CAS 103-63-9
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Liquid
Melting point
-67.5 °C
Boiling point
219 °C
Density
1.355
Solubility
39.05 mg/l at 25 °C
HS code
290399
Category
Synthetic aroma chemicals
Illustrative photo, closed blue steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Phenethyl bromide?

Plain description, key identifiers and synonyms

Phenethyl bromide is a chemical substance with the molecular formula C8H9Br and a molar mass of 185.06 g/mol. Its CAS registry number is 103-63-9. The IUPAC name is 2-bromoethylbenzene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-bromoethylbenzene
CAS number
103-63-9 CAS number cross-checkedOther or deprecated CAS: 31620-80-1
EC numbers
203-130-8, 250-734-2
Molecular formula
C8H9Br
UNII
96O442668X
MDL number
MFCD00000240
InChIKey
WMPPDTMATNBGJN-UHFFFAOYSA-N
InChI
InChI=1S/C8H9Br/c9-7-6-8-4-2-1-3-5-8/h1-5H,6-7H2
SMILES (canonical and isomeric)
C1=CC=C(C=C1)CCBr

Synonyms

  • (2-Bromoethyl)benzene
  • 2-Phenylethyl bromide
  • Phenylethyl bromide
  • 1-Bromo-2-phenylethane
  • Benzene, (2-bromoethyl)-
  • 2-Phenethyl bromide
  • 2-Phenyl-1-bromoethane
  • beta-Bromoethylbenzene
  • 2-Bromoethylbenzene
  • phenethylbromide
  • 1-phenyl-2-bromoethane
  • Bromoethylbenzene
  • 2-phenylbromoethane
  • Benzene, bromoethyl-
  • beta-Phenethyl bromide
  • (2-bromo-ethyl)-benzene
  • beta-Phenylethyl bromide
  • 2-(Bromoethyl)benzene
  • Benzene, (bromoethyl)-
  • beta-bromoethyl benzene
  • Phenylethyl bromide (VAN)
  • 2-phenyl ethyl bromide
  • phenethyl bromine
  • phenylethylbromide
  • 2-bromoethylbenzen
Show all 36 synonyms
  • 3-Bromoethylbenzene
  • 2-phenylethylbromide
  • (2bromoethyl)benzene
  • 2-bromoethyl benzene
  • 2-bromoethyl-benzene
  • 2-phenyl-ethylbromid
  • (2-bromethyl)benzene
  • beta-phenylethylbromide
  • (2-phenyl)bromoethane
  • 1-(bromoethyl)benzene
  • 2-phenyl-ethyl bromide

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
-67.5 °Cexp.
Boiling point
219 °Cexp.
Density
1.355exp.
Solubility
39.05 mg/l at 25 °Cexp.
Vapour pressure
0.2445 mm Hg at 25 °Cexp.

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
185.06 g/molcalc.
Exact mass
183.9888 Dacalc.
LogP (octanol/water)
2.62calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
2calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (13)
  • 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.
  • 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 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P501Dispose of contents and container in accordance with local regulations.

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

Phenethyl bromide suppliers

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

All 27 suppliers
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Where suppliers are based

27 suppliers in 9 countries

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Phenethyl bromide 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

Important starting material for the production of various beta-phenethyl derivatives, pharmaceuticals, fragrances, and other fine chemicals.

Industrial uses: Intermediate.

How it is made

Usually manufactured by the free-radical addition of hydrogen bromide to styrene.

Reaction of beta-phenethyl alcohol with phosphorus tribromide or with other reagents.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Phenethyl bromide is traded under.

HS 2903.99Indicative HS code

Halogenated derivatives of aromatic hydrocarbons, other

World exports in 2024
$798M
−15.8% vs 2023, imports $786M
2019 to 2024
Top exporters
  1. China51.0%
  2. United States15.9%
  3. Belgium8.6%
Top importers
  1. India * partner reported16.1%
  2. United States14.7%
  3. Germany10.9%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Phenethyl bromide, based on the data on this page

What is Phenethyl bromide?

Phenethyl bromide is a chemical substance with the molecular formula C8H9Br and a molar mass of 185.06 g/mol. Its CAS registry number is 103-63-9. The IUPAC name is 2-bromoethylbenzene.

What is the CAS number of Phenethyl bromide?

The CAS registry number of Phenethyl bromide is 103-63-9. Other or deprecated CAS numbers: 31620-80-1.

What is the molecular formula and weight of Phenethyl bromide?

The molecular formula of Phenethyl bromide is C8H9Br and its molar mass is 185.06 g/mol.

What is Phenethyl bromide used for?

Important starting material for the production of various beta-phenethyl derivatives, pharmaceuticals, fragrances, and other fine chemicals. Industrial uses: Intermediate.

Is Phenethyl bromide hazardous?

Phenethyl bromide carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Phenethyl bromide?

Phenethyl bromide is usually classified under HS code 290399 (Halogenated derivatives of aromatic hydrocarbons, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phenethyl bromide?

CompoundList lists 27 suppliers of Phenethyl bromide in China, United States, India, Czech Republic and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Phenethyl bromide in India?

4 suppliers in India list Phenethyl bromide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Phenethyl bromide?

Suppliers quote Phenethyl bromide 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 Phenethyl bromide

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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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