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Merck

C91492

Cyanogen bromide

reagent grade, 97%

Synonym(s):

Bromine cyanide

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About This Item

Linear Formula:
BrCN
CAS Number:
506-68-3
Molecular Weight:
105.92
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57654055
EC Number:
208-051-2
Beilstein/REAXYS Number:
1697296
MDL number:
MFCD00011597
Assay:
97%
Form:
crystals

Key Documents

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Product Name

Cyanogen bromide, reagent grade, 97%

InChI key

ATDGTVJJHBUTRL-UHFFFAOYSA-N

InChI

1S/CBrN/c2-1-3

SMILES string

BrC#N

grade

reagent grade

vapor density

3.65 (vs air)

vapor pressure

100 mmHg ( 22.6 °C)

assay

97%

form

crystals

bp

61-62 °C (lit.)

mp

50-53 °C (lit.)

storage temp.

2-8°C

Quality Level

200

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Application

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

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.

signalword

Danger

Hazard Classifications

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

supp_hazards

EUH032

Storage Class

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

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ7340
SDBB6611
MKCZ1757
MKCX8730
MKCZ0831

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Org. Mass Spectrom., 28, 1395-1395 (1993)
Applied Biochemistry and Biotechnology, 44, 135-135 (1994)
Coupling of polysaccharides to erythrocytes by cyanogen bromide.
A W Richter et al.
Scandinavian journal of immunology, 3(3), 365-368 (1974-01-01)
Abdul-Sada, A.K. et al.
Chemical Communications (Cambridge, England), 307-307 (1998)
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.
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