Gold Nanoparticles - 20nm, 1 OD, supplied in 0.1mg/ml stabilized suspension citrate buffer, 524nm abs. max , CAS No.7440-57-5

CAS: 7440-57-5 Cat. No.: G359133 Formula: Au Molecular Weight: 196.97 EC Number: 231-165-9 PubChem CID: 23985

GRADE & PURITY 20nm, 1 OD, supplied in 0.1mg/ml stabilized suspension citrate buffer, 524nm abs. max

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: Citrate stabilized gold colloid

Core Size: 20nm

Absorption max: 524nm

Particles per ml: 6.54E+11

Intended use:

Adsorption of thiolated ligands such as oligonucleotides and polyethylene glycols. Also, due to the increased stability, these gold nanoparticles are ideal for use in physical and optical applications.

Note: 

This product is not ideal for protein adsorption. For gold nanoparticles suitable for adsorption of proteins and other ligands for conjugate development.

Properties :

unconjugated gold nanoparticles are made using a unique proprietary protocol resulting in particles with superior size distribution and shape compared to that of the leading competitor.

Our gold nanoparticle preparations have a narrow size distribution (CV of less than 15%), exceptional protein adsorption properties and more than 95% spherical particles. In addition, low batch to batch variability (+/- 2nm) assures you as a customer always end up with a product within the specified size range ordered.

All of our batches go through stringent quality control prior to shipment to our customers using dynamic light scattering to guarantee size and monodispersity and lot specifications are supplied with each product.

Storage:

Store product away from direct sunlight at 4-25°C. Lower temperature prolongs the shelf life of the product.

Do NOT freeze. Freezing causes irreversible aggregation of the gold nanoparticles. When stored as specified the product is stable for at least six months.

Product Data

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

20nm, 1 OD, supplied in 0.1mg/ml stabilized suspension citrate buffer, 524nm abs. max

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

Pubchem Sid

508816808

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