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Safety Information

C91492

Sigma-Aldrich

Cyanogen bromide

reagent grade, 97%

Synonym(s):

Bromine cyanide

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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

grade

reagent grade

Quality Level

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

SMILES string

BrC#N

InChI

1S/CBrN/c2-1-3

InChI key

ATDGTVJJHBUTRL-UHFFFAOYSA-N

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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 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.

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Poisonous substance

PRTR

Class I Designated Chemical Substances

JAN Code

C91492-100G-BULK:
C91492-100G-PW:
C91492-25G-BULK:
C91492-100G:4548173192987
C91492-500G:4548173193007
C91492-500MG:4548173277141
C91492-5G:4548173193014
C91492-BULK:
C91492-500G-PW:
C91492-25G:4548173192994
C91492-VAR:
C91492-5G-PW:
C91492-500G-BULK:
C91492-PM:
C91492-25G-PW:
C91492-5G-BULK:


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Customers Also Viewed

Org. Mass Spectrom., 28, 1395-1395 (1993)
Applied Biochemistry and Biotechnology, 44, 135-135 (1994)
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.
Threshold photoelectron spectroscopy of cyanogen bromide.
Yencha AJ, et al.
Chemical Physics Letters, 392(1), 202-208 (2004)
Oxadiazole: a biologically important heterocycle.
Somani RR and Shirodkar PY.
Der Pharma Chemica, 1(1), 130-140 (2009)

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