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Aromatic building blocks

Alpha,beta-dibromostilbene

Also known as [(E)-1,2-Dibromo-2-phenylethenyl]benzene, e-dibromostilbene, 1,2-dibromo-1,2-diphenylethene

CAS 32047-17-9Formula C14H10Br2Molar mass 338.04 g/molEC 667-750-4
GHS signal word: Warning. Pictograms: Harmful or irritant
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Alpha,beta-dibromostilbene chemical structure, C14H10Br2, CAS 32047-17-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
32047-17-9
Formula
C14H10Br2
Molar mass
338.04 g/mol
EC number
667-750-4
HS code
290399
Category
Aromatic building blocks

What is Alpha,beta-dibromostilbene?

Plain description, key identifiers and synonyms

Alpha,beta-dibromostilbene is a chemical substance with the molecular formula C14H10Br2 and a molar mass of 338.04 g/mol. Its CAS registry number is 32047-17-9. The IUPAC name is [(E)-1,2-dibromo-2-phenylethenyl]benzene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(E)-1,2-dibromo-2-phenylethenyl]benzene
CAS number
32047-17-9Other or deprecated CAS: 20432-10-4
EC number
667-750-4
Molecular formula
C14H10Br2
InChIKey
XNJYRGMCZCPTJE-BUHFOSPRSA-N
InChI
InChI=1S/C14H10Br2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10H/b14-13+
Canonical SMILES
BrC(=C(Br)c1ccccc1)c1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)/C(=C(/C2=CC=CC=C2)\Br)/Br

Synonyms

  • [(E)-1,2-Dibromo-2-phenylethenyl]benzene
  • e-dibromostilbene
  • 1,2-dibromo-1,2-diphenylethene
  • (E)-1,2-Dibromo-1,2-diphenylethene
  • Benzene, 1,1'-(1,2-dibromo-1,2-ethenediyl)bis-
  • [(E)-1,2-Dibromo-2-phenylethenyl]benzene #

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
338.04 g/molcalc.
Exact mass
335.9149 Dacalc.
LogP (octanol/water)
5.3calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
2calc.
Heavy atoms
16calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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, C(=Cc1ccccc1)c1ccccc1

C(=Cc1ccccc1)c1ccccc1

2 rings, 14 atoms, the Stilbene ring system.

2,005 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

  • H315Causes skin irritation.
  • H335May cause respiratory irritation.
Precautionary statements (13)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

Alpha,beta-dibromostilbene suppliers

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Alpha,beta-dibromostilbene price

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Alpha,beta-dibromostilbene 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 Alpha,beta-dibromostilbene is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Alpha,beta-dibromostilbene, based on the data on this page

What is Alpha,beta-dibromostilbene?

Alpha,beta-dibromostilbene is a chemical substance with the molecular formula C14H10Br2 and a molar mass of 338.04 g/mol. Its CAS registry number is 32047-17-9. The IUPAC name is [(E)-1,2-dibromo-2-phenylethenyl]benzene.

What is the CAS number of Alpha,beta-dibromostilbene?

The CAS registry number of Alpha,beta-dibromostilbene is 32047-17-9. Other or deprecated CAS numbers: 20432-10-4.

What is the molecular formula and weight of Alpha,beta-dibromostilbene?

The molecular formula of Alpha,beta-dibromostilbene is C14H10Br2 and its molar mass is 338.04 g/mol.

What is Alpha,beta-dibromostilbene used for?

Known uses and roles of Alpha,beta-dibromostilbene include building blocks in research and laboratory.

Is Alpha,beta-dibromostilbene hazardous?

Alpha,beta-dibromostilbene carries the GHS signal word "Warning". Main hazards: causes skin irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Alpha,beta-dibromostilbene?

Alpha,beta-dibromostilbene 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 Alpha,beta-dibromostilbene?

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What is the price of Alpha,beta-dibromostilbene?

Suppliers quote Alpha,beta-dibromostilbene 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 Alpha,beta-dibromostilbene

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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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