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266086

Sigma-Aldrich

Copper

powder, <425 μm, 99.5% trace metals basis

Synonym(s):

Cu

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About This Item

Empirical Formula (Hill Notation):
Cu
CAS Number:
7440-50-8
Molecular Weight:
63.55
EC Number:
231-159-6
MDL number:
MFCD00010965
UNSPSC Code:
12141711
PubChem Substance ID:
24856123
NACRES:
NA.22

Assay

99.5% trace metals basis

form

powder

reaction suitability

core: copper
reagent type: catalyst

resistivity

1.673 μΩ-cm, 20°C

particle size

<425 μm

bp

2567 °C (lit.)

mp

1083.4 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

SMILES string

[Cu]

InChI

1S/Cu

InChI key

RYGMFSIKBFXOCR-UHFFFAOYSA-N

Application

Catalyst for the cyclization and coupling reactions; e.g. Ullmann coupling reactions, preparation of cyclopropanes, decomposition of diazoketones or diazoesters, insertion to C-O bonds, [3 + 2] cycloaddition of terminal alkynes and azides, hydrogenation.

Pictograms

FlameEnvironment
GHS02,GHS09

Signal Word

Danger

Hazard Statements

H228,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Daniel L Priebbenow et al.
Organic letters, 15(24), 6155-6157 (2013-11-28)
A method has been developed for the preparation of N-alkynylated sulfoximines involving the copper-catalyzed decarboxylative coupling of sulfoximines with aryl propiolic acids. A range of substituents on both the sulfoximidoyl moiety and the aryl group of the propiolic acid were
Hiroshi Sato et al.
Science (New York, N.Y.), 343(6167), 167-170 (2013-12-18)
Carbon monoxide (CO) produced in many large-scale industrial oxidation processes is difficult to separate from nitrogen (N2), and afterward, CO is further oxidized to carbon dioxide. Here, we report a soft nanoporous crystalline material that selectively adsorbs CO with adaptable
Magnus Andersson et al.
Nature structural & molecular biology, 21(1), 43-48 (2013-12-10)
Heavy metals in cells are typically regulated by PIB-type ATPases. The first structure of the class, a Cu(+)-ATPase from Legionella pneumophila (LpCopA), outlined a copper transport pathway across the membrane, which was inferred to be occluded. Here we show by
Yan Meng et al.
Biochimica et biophysica acta, 1690(3), 208-219 (2004-10-30)
Hepatic abnormalities in Long-Evans Cinnamon (LEC) rats, an animal model of Wilson disease (WD), were restored by the expression of the human ATP7B cDNA under the control of CAG promoter. Expression of ATP7B transcript and protein in the liver of
Seonah Kim et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(1), 149-154 (2013-12-18)
Lytic polysaccharide monooxygenases (LPMOs) exhibit a mononuclear copper-containing active site and use dioxygen and a reducing agent to oxidatively cleave glycosidic linkages in polysaccharides. LPMOs represent a unique paradigm in carbohydrate turnover and exhibit synergy with hydrolytic enzymes in biomass
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