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G4022

Sigma-Aldrich

Gold(III) chloride trihydrate

ACS reagent, ≥49.0% Au basis

Synonym(s):

Hydrogen tetrachloroaurate(III), Tetrachloroauric(III) acid

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About This Item

Linear Formula:
HAuCl4 · 3H2O
CAS Number:
16961-25-4
Molecular Weight:
393.83
EC Number:
240-948-4
MDL number:
MFCD00149904
UNSPSC Code:
12352302
PubChem Substance ID:
329799921
NACRES:
NA.21
grade:
ACS reagent
form:
powder, crystals or chunks

grade

ACS reagent

Quality Level

200

form

powder, crystals or chunks

reaction suitability

reagent type: catalyst
core: gold

concentration

≥49.0% Au

impurities

≤0.1% Insoluble in ether

cation traces

alkalies and other metals (as sulfates): ≤0.2%

storage temp.

2-8°C

SMILES string

Cl[H].[H]O[H].[H]O[H].[H]O[H].Cl[Au](Cl)Cl

InChI

1S/Au.4ClH.3H2O/h;4*1H;3*1H2/q+3;;;;;;;/p-3

InChI key

XYYVDQWGDNRQDA-UHFFFAOYSA-K

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Application

Gold Catalysts — 21st Century ′Gold Rush′
Gold(III) chloride trihydrate can be used as a gold precursor salt for the production of gold nanoparticles (AuNP) using various reducing agents.
It can also be used as a catalyst in the following processes:
  • HAuCl4 3H2O inPEG 400 is used to synthesize spirochromene derivatives via a one-pot three-component reaction of isatins/acenaphthoquinone, active methylene compounds, and cyclic 1,3-diketones/4-hydroxycoumarin.      
  • Au/CeO2 catalytic system is used in chemoselective oxidation of aromatic/aliphatic alcohols to corresponding carbonyl compounds.      
  • Used in the synthesis of allylnaphthalenes by ring-opening of 1,4-epoxy-1,4-dihydronaphthalenes with allyltrimethylsilane.

Signal Word

Danger

Hazard Statements

H290,H302,H314,H373,H411

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT RE 2 Oral

Target Organs

Kidney

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

G4022-VAR:
G4022-25G:4548173197661
G4022-5G:4548173197678
G4022-BULK:
G4022-1G:4548173197654
G4022-10G:4548173197647
G4022-H:

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Certificates of Analysis (COA)

Lot/Batch Number
WXBD7201V
WXBD6856V
MKCP2035
MKCN3279
WXBD6234V

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Regioselective Gold-Catalyzed Allylative Ring Opening of 1, 4-Epoxy-1, 4-dihydronaphthalenes
Sawama Y, et al.
Synlett, 2010(14), 2151-2155 (2010)
Sang Hui Jun et al.
Journal of nanoscience and nanotechnology, 14(8), 6202-6208 (2015-05-06)
Traditional medicinal plants possess diverse active constituents for exerting their biological activities. Recently, the innovative applications of plant extracts have revealed their promise as 'green' reducing agents for the reduction of metal ions during the synthesis of metallic nanoparticles. Herein
Jairo Pinto Oliveira et al.
Scientific reports, 9(1), 13859-13859 (2019-09-27)
Antibody-coated nanoparticles have recently attracted considerable attention, with the focus falling on diagnostics. Nevertheless, controlled antibody bioconjugation remains a challenge. Here, we present two strategies of bioconjugation with the aim of evaluating the best approach for the coupling of antibodies

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