Copper(I) bromide

AnhydroBeads, -10 mesh, 99.99% trace metals basis

Cuprous bromide
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

product line



99.99% trace metals basis


≤ 150.0  ppm Trace Metal Analysis

particle size

-10 mesh


504 °C (lit.)


4.71 g/mL at 25 °C (lit.)

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Battery Manufacturing

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General description

Cuprous bromide may be prepared by the reduction of cupric bromide or CuSO4-NaBr. In the molten state, it is grayish brown /greenish brown in color.


Some reported applications of copper bromide are:
  • catalyst in cross coupling reactions.
  • co-catalyst in Sonogashira coupling.
  • Lewis acid in enantioselective addition of alkynes.
  • reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.

Reductive homocoupling of α-bromo- α- chlorocarboxylates to dimethyl α, α′ dichlorosuccinate derivatives in presence of CuBr/LiOCH3 in methanol has been reported.


25 g in glass bottle

Legal Information

AnhydroBeads is a trademark of Sigma-Aldrich Co. LLC


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Study on atom transfer radical polymerization initiated by p-nitrophenyl initiator and synthesis of amino end-functionalized polymers thereof
Qu, T.; Cai, W.; Fu, Z.; Shi, Y.
Macromolecular Research, 18(7), 623-629 (2010)
Shengtong Sun et al.
The journal of physical chemistry. A, 114(32), 8331-8336 (2010-08-13)
A designed ligand-accelerated Cu(I)-catalyzed cycloaddition (CuAAC) reaction was monitored for the first time by real time infrared analysis technique based on ATR-FTIR principles. Principal components analysis (PCA) and two-dimensional correlation spectroscopy (2Dcos) results showed that the consumption of alkyne and...
Denissova I and Barriault L et al.
Handbook of Reagents for Organic Synthesis null
B Podobnik et al.
Bioconjugate chemistry, 26(3), 452-459 (2015-01-30)
The covalent attachment of poly(ethylene glycol) (PEG) to therapeutic proteins is a commonly used approach for extending in vivo half-lives. A potential limitation of this PEGylation strategy is the adverse effect of PEG on conjugate viscosity. Interferon-alpha (IFN) was conjugated...
Amrita Sarkar et al.
Soft matter, 15(26), 5193-5203 (2019-06-18)
The combination of precision control with wide tunability remains a challenge for the fabrication of porous nanomaterials suitable for studies of nanostructure-behavior relationships. Polymer micelle templates broadly enable porous materials, however micelle equilibration hampers independent pore and wall size control....
Nanostructured Materials Through Ultrasonic Spray Pyrolysis
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Advances in materials have often been led by the development of new synthetic methods that provide control over size, morphology and structure. The preparation of materials in a scalable and continuous manner is critical when development moves beyond lab-scale quantities.
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