Skip to Content
Merck
All Photos(1)

Documents

494178

Sigma-Aldrich

1-Bromo-2-ethynylbenzene

95%

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
HC≡CC6H4Br
CAS Number:
Molecular Weight:
181.03
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

95%

refractive index

n20/D 1.595 (lit.)

bp

92-93 °C/20 mmHg (lit.)

density

1.443 g/mL at 25 °C (lit.)

SMILES string

Brc1ccccc1C#C

InChI

1S/C8H5Br/c1-2-7-5-3-4-6-8(7)9/h1,3-6H

InChI key

RVDOYUFNRDGYGU-UHFFFAOYSA-N

General description

1-Bromo-2-ethynylbenzene (BEB) is a haloalkyne. It undergoes Sonogashira coupling with methyl 2-iodobenzoate to form bromo tolane derivative.

Application

1-Bromo-2-ethynylbenzene may be used in the synthesis of 1-(2-bromophenyl)-2-(dibenzo[b,d]thiophen-4-yl)ethanone.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

145.4 °F - closed cup

Flash Point(C)

63 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Regioselective functionalisation of dibenzothiophenes through gold-catalysed intermolecular alkyne oxyarylation.
Barrett MJ, et al.
Organic & Biomolecular Chemistry, 13(32), 8676-8686 (2015)
Z-Shaped Pentaleno-Acene Dimers with High Stability and Small Band Gap.
Dai G, et al.
Angewandte Chemie (Weinheim an der Bergstrasse, Germany), 128(8), 2743-2746 (2016)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service