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Merck

923060

Sigma-Aldrich

Copper(I) bromide

99.9% trace metals basis

Synonym(s):

Cuprous bromide

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About This Item

Linear Formula:
CuBr
CAS Number:
7787-70-4
Molecular Weight:
143.45
MDL number:
MFCD00010969
UNSPSC Code:
12352302
NACRES:
NA.21
Assay:
99.9% trace metals basis
Form:
powder

Key Documents

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Quality Level

200

Assay

99.9% trace metals basis

form

powder

reaction suitability

core: copper
reagent type: catalyst

mp

504 °C (lit.)

density

4.71 g/mL at 25 °C (lit.)

SMILES string

[Cu]Br

InChI

1S/BrH.Cu/h1H;/q;+1/p-1

InChI key

NKNDPYCGAZPOFS-UHFFFAOYSA-M

Application

Copper bromide (CuBr) is used in Sandmeyer’s reaction to prepare aryl bromides from aryl diazonium salts. It is also used as a co-catalyst in Sonogashira coupling reaction. CuBr reacts with organolithium compounds to form organocopper complexes that are commonly used in organic synthesis for C-C bond formation.

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Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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