Gold Nanoparticles - 5 nm diameter, OD 1, stabilized suspension in citrate buffer , CAS No.7440-57-5

CAS: 7440-57-5 Cat. No.: G359126 Formula: Au Molecular Weight: 196.97 EC Number: 231-165-9 PubChem CID: 23985

GRADE & PURITY 5 nm diameter, OD 1, stabilized suspension in citrate buffer

Synonyms

CI 77480 | Gold Dispersion | Gold, foil, thickness 0.025 mm, size 50 x 50 mm, purity 99.95% | UNII-79Y1949PYO | gold atom | Gold flake | Gold, wire, 0.025 mm diameter, length 10 m, purity 99.99+% | Gold, elemental | Gold, foil, thickness 0.015 mm, size 50

Storage

Store at 2-8°C,Protected from light

Shipped In

Wet ice

Overview

Composition: Tannic acid stabilized gold colloid
Core Size: 5nm
Absorption max: 515-520nm
Particles per ml: 5.47E+13
Formulation: Supplied in 0.1mg/ml citrate supplemented with a proprietary stabilizing solution.
Gold nanoparticles (AuNPs) are colloidal nanoparticles with multiple surface functionalities that can be used in the development of new biomaterials. AuNP has a spherical structure with a large surface to volume ratio and excellent biocompatibility. It is majorly used in a variety of biomedical applications ranging from diagnostics to drug delivery.

Points for attention

Do NOT freeze. Freezing causes irreversible aggregation of the gold nanoparticles.

Specifications

Synonyms

CI 77480 | Gold Dispersion | Gold, foil, thickness 0.025 mm, size 50 x 50 mm, purity 99.95% | UNII-79Y1949PYO | gold atom | Gold flake | Gold, wire, 0.025 mm diameter, length 10 m, purity 99.99+% | Gold, elemental | Gold, foil, thickness 0.015 mm, size 50

Specifications & Purity

5 nm diameter, OD 1, stabilized suspension in citrate buffer

Legal Information

Product of CytoDiagnostics, Inc.

Storage

Store at 2-8°C,Protected from light

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Names and Identifiers

Canonical Smiles

[Au]

IUPAC Name

gold

InChIKey

PCHJSUWPFVWCPO-UHFFFAOYSA-N

INCHI

1S/Au

Isomeric SMILES

[Au]

PubChem CID

23985

Molecular Weight

196.97

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Homogeneous metal compounds
    • Class Homogeneous transition metal compounds

• Kingdom: Inorganic compounds
• Superclass: Homogeneous metal compounds
• Class: Homogeneous transition metal compounds
• Subclass: Not available
• Intermediate Tree Nodes: Not available
• Direct Parent: Homogeneous transition metal compounds
• Alternative Parents: Not available
• Molecular Framework: Not available
• Substituents: Homogeneous transition metal
• Description: This compound belongs to the class of inorganic compounds known as homogeneous transition metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a transition metal atom.
• External Descriptors: elemental gold

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Sensitivity: Light sensitive
• x_boil_point_char: 2808°C
• x_melt_point_char: 1063°C
• Molecular Weight: 196.966 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 196.967 Da
• Monoisotopic Mass: 196.967 Da
• Topological Polar Surface Area: 0.000 Ų
• Heavy Atom Count: 1
• Formal Charge: 0
• Complexity: 0.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

XLogP3

Frequently Asked Questions

How should this product be stored?

Store at 2–8 °C, protected from light. The material is light-sensitive — keep it in its original opaque or amber container.

How is this product shipped?

This product ships chilled on wet ice. Unpack on arrival and transfer it to the storage condition stated above.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 7440-57-5, the molecular formula is Au, and the molecular weight is 196.97 g/mol. InChIKey PCHJSUWPFVWCPO-UHFFFAOYSA-N.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.