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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

Quality Level

200

Assay

99.9% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: copper

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

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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.

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

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

Deleterious substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

923060-100G:
923060-BULK:
923060-25G:4548173372273
923060-VAR:

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Recent advances and perspectives in copper-catalyzed Sonogashira coupling reactions.
Thomas, A. et al
Royal Society of Chemistry Advances, 4(42), 21688-21698 (2014)

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