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207780

Sigma-Aldrich

Copper

powder, <75 μm, 99%

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About This Item

Empirical Formula (Hill Notation):
Cu
CAS Number:
Molecular Weight:
63.55
EC Number:
MDL number:
UNSPSC Code:
12141711
PubChem Substance ID:
NACRES:
NA.23

Assay

99%

form

powder

resistivity

1.673 μΩ-cm, 20°C

particle size

<75 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

General description

Copperis a versatile and widely used metal with significant importance in variousfields, particularly in catalysis and material science. In material science,copper is used in various conductive materials due to its excellent electricaland thermal conductivity, ductility, and corrosion resistance. Additionally,copper is also extensively used as a catalyst in various chemical reactions dueto its ability to facilitate electron transfer and promote redox reactions. Itoften acts as a catalyst in various reactions which include reduction, cross-couplingreactions and “click" chemistry (such as copper-catalyzed azide-alkynecycloaddition reactions.

Application

  • Photoinduced Copper-Catalyzed Aminoalkylation of Amino-Pendant Olefins.: This study explores the use of copper catalysts in photoinduced aminoalkylation reactions, highlighting the efficiency and potential applications in organic synthesis (Zhang et al., 2023).
  • Synthesis of Azoxy Compounds: from Copper Compounds to Mesoporous Silica-Encaged Ultrasmall Copper Catalysts.: This research focuses on the development of copper-based catalysts for the synthesis of azoxy compounds, emphasizing their application in sustainable chemistry (Han et al., 2023).
  • Cu-catalyzed enantioselective allylic alkylation with organolithium reagents.: The paper presents a method for enantioselective allylic alkylation using copper catalysts, providing insights into asymmetric synthesis techniques (Hornillos et al., 2017).

Pictograms

FlameEnvironment

Signal Word

Danger

Hazard Statements

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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Seiko Ishida et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(48), 19507-19512 (2013-11-13)
Copper is an essential trace element, the imbalances of which are associated with various pathological conditions, including cancer, albeit via largely undefined molecular and cellular mechanisms. Here we provide evidence that levels of bioavailable copper modulate tumor growth. Chronic exposure
R Squitti et al.
Neurology, 67(1), 76-82 (2006-07-13)
To assess whether serum copper in Alzheimer disease (AD) correlates with cognitive scores, beta-amyloid, and other CSF markers of neurodegeneration. The authors studied copper, ceruloplasmin, total peroxide, and antioxidants levels (TRAP) in serum; beta-amyloid in plasma; and copper, beta-amyloid, h-tau
Stephen G Kaler et al.
The New England journal of medicine, 358(6), 605-614 (2008-02-08)
Menkes disease is a fatal neurodegenerative disorder of infancy caused by diverse mutations in a copper-transport gene, ATP7A. Early treatment with copper injections may prevent death and illness, but presymptomatic detection is hindered by the inadequate sensitivity and specificity of
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
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

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