Skip to Content
Merck
All Photos(1)

Key Documents

481432

Sigma-Aldrich

Cyanogen bromide

99.995% trace metals basis

Synonym(s):

Bromine cyanide

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
BrCN
CAS Number:
Molecular Weight:
105.92
Beilstein:
1697296
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor density

3.65 (vs air)

Quality Level

vapor pressure

100 mmHg ( 22.6 °C)

Assay

99.995% trace metals basis

bp

61-62 °C (lit.)

mp

50-53 °C (lit.)

functional group

bromo

storage temp.

2-8°C

SMILES string

BrC#N

InChI

1S/CBrN/c2-1-3

InChI key

ATDGTVJJHBUTRL-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Cyanogen bromide (CNBr) is a halogen halide. Its utility as a condensing agent during chemical ligation of oligodeoxyribonucleotides has been reported. Its threshold photoelectron (TPE) spectrum has been recorded under high resolution. The cryopolymerization of CNBr on irradiation has been investigated.

Application

Cyanogen bromide may be used:
  • To activate polysaccharides for coupling with erythrocytes.
  • As an oxidizing agent in the urine thaimine assay.
  • In the preparation of 2-amino-5-(2′-thienyl)-1,3,4-oxadiazole.
Reaction with C60Ph5Cl produces a novel phenylated isoquinolino[3′,4′:1,2][60]fullerene.

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B

Supplementary Hazards

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

>149.0 °F - closed cup

Flash Point(C)

> 65 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

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

Visit the Document Library

N I Sokolova et al.
FEBS letters, 232(1), 153-155 (1988-05-09)
Cyanogen bromide was found to condense oligodeoxyribonucleotides on a complementary template in aqueous solution. Optimum conditions for this vigorous and effective reaction were developed. CNBr proved to be useful for incorporation of phosphoramidate or pyrophosphate internucleotide bonds in DNA duplexes.
Abdul-Sada, A.K. et al.
Chemical Communications (Cambridge, England), 307-307 (1998)
Threshold photoelectron spectroscopy of cyanogen bromide.
Yencha AJ, et al.
Chemical Physics Letters, 392(1), 202-208 (2004)
Cyanogen bromide, a good reagent for assay of thiamine in urine.
K Ratanaubolchai et al.
Clinical chemistry, 25(9), 1670-1671 (1979-09-01)
Coupling of polysaccharides to erythrocytes by cyanogen bromide.
A W Richter et al.
Scandinavian journal of immunology, 3(3), 365-368 (1974-01-01)

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