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Merck
CN

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
Beilstein:
1697296
EC Number:
208-051-2
MDL number:
MFCD00011597
UNSPSC Code:
12352100
PubChem Substance ID:
57654055
NACRES:
NA.22

Key Documents

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grade

reagent grade

Quality Level

200

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

EUH032

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 Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SDBB6611
MKCZ1757
MKCX8730
MKCZ0831
MKCX6679

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Applied Biochemistry and Biotechnology, 44, 135-135 (1994)
Oxadiazole: a biologically important heterocycle.
Somani RR and Shirodkar PY.
Der Pharma Chemica, 1(1), 130-140 (2009)
Low-temperature radiation polymerization of cyanogen bromide.
Kichigina GA, et al.
Mendeleev Communications, 8(4), 159-160 (1998)
Coupling of polysaccharides to erythrocytes by cyanogen bromide.
A W Richter et al.
Scandinavian journal of immunology, 3(3), 365-368 (1974-01-01)
Cyanogen bromide, a good reagent for assay of thiamine in urine.
K Ratanaubolchai et al.
Clinical chemistry, 25(9), 1670-1671 (1979-09-01)
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