Skip to Content
Merck
All Photos(4)

Key Documents

View All Documentation

208825

Sigma-Aldrich

Copper(I) oxide

powder, ≤7 μm, 97%

Synonym(s):

Cuprous oxide

Sign Into View Organizational & Contract Pricing
All Photos(4)

About This Item

Linear Formula:
Cu2O
CAS Number:
1317-39-1
Molecular Weight:
143.09
EC Number:
215-270-7
MDL number:
MFCD00010974
UNSPSC Code:
12352302
PubChem Substance ID:
329752047
NACRES:
NA.55

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.

Signal Word

Danger

Hazard Statements

H302 + H332,H318,H410

Hazard Classifications

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

Storage Class Code

13 - Non Combustible Solids

WGK

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

Copper (I) Oxide
Tuckmantel W
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
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
Ligand-free Cu2O-catalyzed cross coupling of nitrogen heterocycles with iodopyridines
Teo Y, et al.
Tetrahedron, 69, 7279-7284 (2013)
View All Related Papers

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