Skip to Content
MilliporeSigma
All Photos(4)

Documents

208825

Sigma-Aldrich

Copper(I) oxide

powder, ≤7 μm, 97%

Synonym(s):

Cuprous oxide

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
Cu2O
CAS Number:
Molecular Weight:
143.09
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.55

Quality Level

assay

97%

form

powder

contains

stabilizer

particle size

≤7 μm

density

6 g/mL at 25 °C (lit.)

SMILES string

[Cu]O[Cu]

InChI

1S/2Cu.O

InChI key

BERDEBHAJNAUOM-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Copper(I)oxide is a weak base that can be used in nucleophilic substitution, decarboxylation, cyclocondensation, and 1,1-addition reactions. It can also be used to form carbenoid intermediates from diazo compounds and radicals from arenediazonium salts.

Application

Copper(I) oxide can be used as a catalyst to synthesize:
  • Ynones via solvent-free Sonogashira reaction.
  • N-Heteroaryl derivatives via cross-coupling of nitrogen heterocycles with halopyridines.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

A highly efficient nano-sized Cu2O/SiO2 egg-shell catalyst for C?C coupling reactions
Kim S, et al.
Royal Society of Chemistry Advances, 8, 6200-6205 (2018)
Copper (I) Oxide-Mediated Cyclization of o-Haloaryl N-Tosylhydrazones: Efficient Synthesis of Indazoles.
Tang M, et al.
Advanced Synthesis & Catalysis (2016)
Dmytro S Kozak et al.
Scientific reports, 6, 21178-21178 (2016-02-18)
Electrolytic processes are widely used to synthesize different nanomaterials and it does not depend on what kind of the method has been applied (wet-chemistry, sonochemistry, plasma chemistry, electrolysis and so on). Generally, the reactions in the electrolyte are considered to
Copper (I) Oxide
Tuckmantel W
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Ligand-free Cu2O-catalyzed cross coupling of nitrogen heterocycles with iodopyridines
Teo Y, et al.
Tetrahedron, 69, 7279-7284 (2013)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service