Gold nanoparticles - 50nm, 1 OD, supplied in 0.1mg/ml stabilized suspension citrate buffer , CAS No.7440-57-5

CAS: 7440-57-5 Cat. No.: G486097 Formula: Au Molecular Weight: 196.97 EC Number: 231-165-9 PubChem CID: 23985
AVAILABLE TO ORDER
GRADE & PURITY 50nm, 1 OD, supplied in 0.1mg/ml stabilized suspension 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
Shipped In
Wet ice
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Size
Germany (EU)
USA*
Price
Qty
20ml
G486097-20ml
Made to order · 8–12 wks
€583.03
100ml
G486097-100ml
Made to order · 8–12 wks
€1,457.71
Enter a quantity for the sizes you want to add.
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Why this grade

50nm, 1 OD, supplied in 0.1mg/ml stabilized suspension citrate buffer for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 28 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Description

Ideal for 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, please see our gold nanoparticles stabilized in PBS.This material is highly monodisperse (<12% variability in size and shape), and provides significantly improved surface reactivity. Applications include Surface Enhanced Raman Lables, Sensing/Detection, Biological Targeting, Plasmonics and Electronics.

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
50nm, 1 OD, supplied in 0.1mg/ml stabilized suspension citrate buffer
Legal Information
Product of CytoDiagnostics, Inc.
Storage
Store at 2-8°C
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 Namegold
InChIKeyPCHJSUWPFVWCPO-UHFFFAOYSA-N
INCHI1S/Au
Isomeric SMILES [Au]
PubChem CID 23985
Molecular Weight 196.97

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassHomogeneous metal compounds
ClassHomogeneous transition metal compounds
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentHomogeneous transition metal compounds
Alternative Parents Not available
Molecular FrameworkNot available
Substituents Homogeneous transition metal
DescriptionThis 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
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

1 results found

Lot NumberCertificate TypeDateItem
A2607510Certificate of AnalysisDec 30, 2025 G486097
Chemical and Physical Properties
x_boil_point_char2808°C
x_melt_point_char1063°C
Molecular Weight196.966 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count0
Exact Mass196.967 Da
Monoisotopic Mass196.967 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count1
Formal Charge0
Complexity0.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
FAQs and Articles
Application of Colloidal Gold in Electron Microscope
Gold Nanoparticles: Properties and Applications
Nanowires: Properties, Preparation Routes, and Process Selection (Comprehensive Analysis of Top-Down and Bottom-Up Approaches with Recommended Aladdin Reagents)
Why Metal Nanocatalysts Can “Save Energy Yet Lose Performance Easily”: Durability Logic from Active Sites to Support/Interface Engineering (Including Selection Guide and Product Tables A–D)
Applications of Self-Assembled Monolayers (SAMs), Microcontact Printing, and Soft Lithography in Surface Functionalization and Micro/Nanopatterning
Metal Halide Perovskite Solar Cells: Sources of High Efficiency, Stability Bottlenecks, and Experimental Decision Logic
Causes, Diagnosis, and Control Strategies for Elevated Off-State Current in Semiconducting Single-Walled Carbon Nanotube Transistors
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

How should this product be stored?
Store at 2–8 °C. Refrigerated storage is required to maintain the specified shelf life.
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.

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