CAS 7440-57-5
:Gold
Description:
Gold, with the Chemical Abstracts Service (CAS) number 7440-57-5, is a highly valued metallic element known for its distinct yellow color and luster. It is classified as a transition metal and is represented by the symbol Au on the periodic table. Gold is characterized by its excellent malleability and ductility, allowing it to be easily shaped into thin sheets or drawn into wires without breaking. It is also highly resistant to corrosion and oxidation, making it stable in various environments. Gold has a high density and is a good conductor of electricity and heat. Chemically, it is relatively inert, reacting only with a few substances, such as halogens and cyanides, under specific conditions. Gold is often found in nature in its native form, typically in alluvial deposits, and is commonly used in jewelry, electronics, and as a standard for monetary systems due to its intrinsic value and rarity. Its unique properties and aesthetic appeal have made it a symbol of wealth and prestige throughout history.
Formula:Au
InChI:InChI=1S/Au
InChI key:InChIKey=PCHJSUWPFVWCPO-UHFFFAOYSA-N
SMILES:[Au]
Synonyms:- 10Nm Colloidal Gold
- 20Ns-20-50
- A 4631
- A 4953
- AGC Micro
- Alfa-Aesar
- Au 050316
- Au 050921
- Au 171481
- Au 1T
- Au 205
- Au DT
- Au Net
- Au-W4
- Au-WPLC 3C
- Au-WPPLC 1C
- Au-WPPLC 3C
- AuPVP
- AuW 011
- AuW 101
- Aue 003A
- Aus-Wm 1000Ca
- Ay 5022
- BL Gold 2-2.8
- Britecote
- Burnish Gold
- Cg 001
- Ch-L 7
- Colloidal gold
- E 175
- Elementary substance gold
- Em.Gc 50
- Emgc 10
- Emgc 100
- Emgc 20
- Emgc 40
- Emgc 5
- Emgc 50
- Emgc 60
- Emgc 80
- Finesphere Gold W 011
- Finesphere Gold W 101
- Furuuchi 8560
- G 1402
- G 200
- Gnp 01-5-100
- Gold 197
- Gold Coating Quality Balzers
- Gold Flake
- Gold Leaf
- Gold black
- Gold element
- Gold foil (99.9%)
- Gold foil (99.95%)
- Gold powder
- Gold shot (99.95%)
- Gold shot (99.9999%)
- Gold wire (99.9999%)
- Gold, Colloidal
- Goldenhance EM
- GoldfoilNmmthickcagmmxmm
- GoldfoilNmmthickcagxmm
- GoldpowderNmesh
- GoldpowderNmicron
- Goldpowdermicronspherical
- GoldshotNmmanddownsemispherical
- GoldwireNmmdiacagcm
- Huayang 9606
- Jinbo
- Jk 013
- Keradec
- Kp 24-00
- Luxor KPS
- Maruko 1
- Npg-J
- Or
- PMP-Au 2
- Palegold 5550
- Paraone PS 1200
- Perfect Gold
- Ph 870
- Powdersafe 1785-01
- Powdersafe 1790-01
- Qsx 301
- Resist CT
- Rr 2C
- Sg 10Nk
- Shell Gold
- T 10112
- Tau 050
- Tau 200
- Tcg 251
- Technic 504
- Tr 1306
- oro
- Gold
- C.I. Pigment Metal 3
- See more synonyms
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Gold Nanoparticles (70nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (70nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuMolecular weight:196.96657Water Soluble Gold Nanoparticles [AuNP: 11-20 nm (Gelatin)]
CAS:<p>Water Soluble Gold Nanoparticles [AuNP: 11-20 nm (Gelatin)]</p>Color and Shape:wine-red liq.Water Soluble Gold Nanoparticles [AuNP: 10 nm (Citrate)]
CAS:<p>Water Soluble Gold Nanoparticles [AuNP: 10 nm (Citrate)]</p>Color and Shape:wine-red liq.Water Soluble Gold Nanoparticles [AuNP: 12-16 nm (Starch)]
CAS:<p>Water Soluble Gold Nanoparticles [AuNP: 12-16 nm (Starch)]</p>Color and Shape:maroon-red liq.Sugar Coated Gold Nanoparticles [AuNP: 6-10 nm (Maltose)]
CAS:<p>Sugar Coated Gold Nanoparticles [AuNP: 6-10 nm (Maltose)]</p>Color and Shape:maroon-red liq.Gold Nanochain [AuNP-Chain: 1-2 μm (Gum Arabic)]
CAS:<p>Gold Nanochain [AuNP-Chain: 1-2 μm (Gum Arabic)]</p>Color and Shape:maroon-red liq.Gold nanoparticles, pure, (<20nm) in isopropanol at 100mg/L (surfactant and reactant-free)
CAS:<p>Gold nanoparticles, pure, (<20nm) in isopropanol at 100mg/L (surfactant and reactant-free)</p>Color and Shape:red liq.Gold Nanoparticles (5nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.)
CAS:<p>Gold Nanoparticles (5nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.)</p>Color and Shape:red liq.Gold Nanoparticles (5 nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 515-520 nm abs. max.) reactant free
CAS:<p>Gold Nanoparticles (5 nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 515-520 nm abs. max.) reactant free</p>Color and Shape:red liq.Gold Nanoparticles (20nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 524nm abs. max.)
CAS:<p>Gold Nanoparticles (20nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 524nm abs. max.)</p>Color and Shape:red liq.Gold Nanorods Kit (Axial Diameter - 25 nm, wavelength 550-700 nm)
CAS:<p>This kit contains the following products:<br> 25ml of (08-79-6000-25ml) Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 550 nm)<br>25ml of (08-79-6005-25ml) Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 600 nm)<br>25ml of (08-79-6010-25ml) Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 650 nm)<br>25ml of (08-79-6015-25ml) Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 700 nm)<br>,<br> </p>Gold Gemini Nanorods, CTAB Free (Wavelength 850 nm)
CAS:<p>Gold Gemini Nanorods, CTAB Free (Wavelength 850 nm)</p>Formula:AuColor and Shape:maroon-purple liq.Molecular weight:196.96657Gold Nanoparticles (200nm diameter, 0.6 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (200nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Gold Nanorods [AuNP-Rod: Aspect Ratio: 3-3.5 (CTAB)]
CAS:<p>Gold Nanorods [AuNP-Rod: Aspect Ratio: 3-3.5 (CTAB)]</p>Color and Shape:maroon-red liq.Gold Nanoparticles (100nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 572nm abs. max.)
CAS:<p>Gold Nanoparticles (100nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 572nm abs. max.)</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Gold Nanoparticles (80nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (80nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuMolecular weight:196.96657Gold Nanoparticles (50nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 535nm abs. max.) reactant free
CAS:<p>Gold Nanoparticles (50nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 535nm abs. max.) reactant free</p>Formula:AuColor and Shape:red liq.Molecular weight:196.96657Gold Nanoparticles (70nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 548nm abs. max.)
CAS:<p>Gold Nanoparticles (70nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 548nm abs. max.)</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 600 nm)
CAS:<p>Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 600 nm)</p>Color and Shape:blue liq.Sugar Coated Gold Nanoparticles [AuNP: 1-2 nm (Lactose)]
CAS:<p>Sugar Coated Gold Nanoparticles [AuNP: 1-2 nm (Lactose)]</p>Color and Shape:maroon-red liq.Gold Nanoparticles (80nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 553nm abs. max.)
CAS:<p>Gold Nanoparticles (80nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 553nm abs. max.)</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Water Soluble Gold Nanoparticles [AuNP: 3nm (Citrate)]
CAS:<p>Water Soluble Gold Nanoparticles [AuNP: 3nm (Citrate)]</p>Color and Shape:wine-red liq.Gold Nanoparticles (150nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (150nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuMolecular weight:196.96657Spherical Gold Nanoparticles (90 nm)
CAS:<p>Spherical Gold Nanoparticles (90 nm)</p>Color and Shape:violet liq.Gold nanoparticles, 5% on carbon black (surfactant and reactant-free)
CAS:<p>Gold nanoparticles, 5% on carbon black (surfactant and reactant-free)</p>Formula:AuColor and Shape:black solidMolecular weight:196.70Spherical Gold Nanoparticles (70 nm)
CAS:<p>Spherical Gold Nanoparticles (70 nm)</p>Color and Shape:pink liq.Gold Nanoparticles (40nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 530nm abs. max.)
CAS:<p>Gold Nanoparticles (40nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 530nm abs. max.)</p>Color and Shape:red liq.Water Soluble Gold Nanoparticles [AuNP: 5nm (Citrate)]
CAS:<p>Water Soluble Gold Nanoparticles [AuNP: 5nm (Citrate)]</p>Color and Shape:wine-red liq.Gold Gemini Nanorods, CTAB Free (Wavelength 650 nm)
CAS:<p>Gold Gemini Nanorods, CTAB Free (Wavelength 650 nm)</p>Formula:AuColor and Shape:violet liq.Molecular weight:196.96657Gold Nanoparticles (10nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.)
CAS:<p>Gold Nanoparticles (10nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.)</p>Color and Shape:red liq.Gold Nanoparticles (50nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 535nm abs. max.)
CAS:<p>Gold Nanoparticles (50nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 535nm abs. max.)</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Gold Nanoparticles (60nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 540nm abs. max.)
CAS:<p>Gold Nanoparticles (60nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 540nm abs. max.)</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 808 nm)
CAS:<p>Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 808 nm)</p>Color and Shape:pale red liq.Water soluble Gold Nanoparticles [AuNP: 15 nm (Citrate)]
CAS:<p>Water soluble Gold Nanoparticles [AuNP: 15 nm (Citrate)]</p>Color and Shape:wine-red liq.Gold Gemini Nanorods, CTAB Free (Wavelength 700 nm)
CAS:<p>Gold Gemini Nanorods, CTAB Free (Wavelength 700 nm)</p>Formula:AuColor and Shape:blue liq.Molecular weight:196.96657Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 700 nm)
CAS:<p>Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 700 nm)</p>Color and Shape:gray liq.Gold Nanoparticles (10nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 520nm abs. max.) reactant free
CAS:<p>Gold Nanoparticles (10nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 520nm abs. max.) reactant free</p>Color and Shape:red liq.Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 700 nm)
CAS:<p>Gold Nanorods (Axial Diameter - 10 nm) (Wavelength 700 nm)</p>Color and Shape:pale red-brown liq.Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 650 nm)
CAS:<p>Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 650 nm)</p>Color and Shape:blue liq.Gold Nanoparticles (300nm diameter, 0.6 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (300nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuMolecular weight:196.96657Gold Nanoparticles (400nm diameter, 0.4 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (400nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuMolecular weight:196.96657Gold Nanoparticles Kit (5nm-40nm diameter, OD 1, stabilized suspension citrate buffer)
CAS:<p>This kit contains the following products:<br> 25ml of (08-79-0182-25ml) Gold Nanoparticles (5nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.)<br>25ml of (08-79-0210-25ml) Gold Nanoparticles (10nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 515-520nm abs. max.)<br>25ml of (08-79-0212-25ml) Gold Nanoparticles (15nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 520nm abs. max.)<br>25ml of (08-79-0214-25ml) Gold Nanoparticles (20nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 524nm abs. max.)<br>25ml of (08-79-0216-25ml) Gold Nanoparticles (30nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 526nm abs. max.)<br>25ml of (08-79-0218-25ml) Gold Nanoparticles (40nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 530nm abs. max.)<br>,<br> </p>Gold nanoparticles, pure, (<20nm) in acetone at 100mg/L (surfactant and reactant-free)
CAS:<p>Gold nanoparticles, pure, (<20nm) in acetone at 100mg/L (surfactant and reactant-free)</p>Color and Shape:red liq.Gold Nanoparticles (200nm, 0.6 OD, supplied in 0.1mM stabilizing surfactant)
CAS:<p>Gold Nanoparticles (200nm, 1 OD, supplied in 0.1mM stabilizing surfactant)</p>Formula:AuColor and Shape:pink to bright-red liq.Molecular weight:196.96657Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 550 nm)
CAS:<p>Gold Nanorods (Axial Diameter - 25 nm) (Wavelength 550 nm)</p>Color and Shape:red liq.Gold shot (99.95%)
CAS:<p>Gold shot (99.95%)</p>Formula:AuPurity:(99.95%)Color and Shape:6.35 mm and down, semi-sphericalMolecular weight:197.20Gold Nanoparticles (20nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 524nm abs. max.) reactant free
CAS:<p>Gold Nanoparticles (20nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline, 524nm abs. max.) reactant free</p>Color and Shape:red liq.Gold NanoUrchins (70nm diameter, 1 OD, 0.1 mM in phosphate-buffered saline, 600nm abs. max.) >95.0% reactant free
CAS:<p>Gold NanoUrchins (70nm diameter, 1 OD, 0.1 mM in phosphate-buffered saline, 600nm abs. max.) >95.0% reactant free</p>Purity:>95.0%Color and Shape:blue liq.Gold Nanoparticles (30nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 526nm abs. max.)
CAS:<p>Gold Nanoparticles (30nm, 1 OD, supplied in 0.1mM stabilizing surfactant, 526nm abs. max.)</p>Color and Shape:red liq.Gold Nanoparticles (100nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free
CAS:<p>Gold Nanoparticles (100nm diameter, 1 OD, stabilized suspension in phosphate-buffered saline) reactant free</p>Formula:AuColor and Shape:brown liq.Molecular weight:196.96657Gold Gemini Nanorods, CTAB Free (Wavelength 750 nm)
CAS:<p>Gold Gemini Nanorods, CTAB Free (Wavelength 750 nm)</p>Formula:AuColor and Shape:red-purple liq.Molecular weight:196.96657Gold Nanoparticles Dispersion (Spherical) (AU60), 0.05mg/ml Citrate, 0.1mM in PBS
CAS:Formula:AuColor and Shape:Pinkish violet, Liquid suspensionMolecular weight:196.97Gold Nanoparticles Dispersion (Spherical) (AU40), 0.05mg/ml Citrate, 0.1mM in PBS
CAS:Color and Shape:Slight pink, Liquid suspensionGold Nanoparticles Dispersion (Spherical) (AU20), 0.05mg/ml Citrate, 0.1mM in PBS
CAS:Color and Shape:Reddish pink, Liquid suspensionGold Nanoparticles Dispersion (Spherical) (AU10), 0.05mg/ml Citrate, 0.1mM in PBS
CAS:Formula:AuColor and Shape:Pink, Liquid suspensionMolecular weight:196.97Gold Nanoparticles Dispersion (Spherical) (AU05), 0.05mg/ml Citrate, 0.1mM in PBS
CAS:Color and Shape:Pinkish red, Liquid suspensionGold 1% on zinc oxide granulate (AUROlite™ Au/ZnO)
CAS:<p>Gold 1% on zinc oxide granulate (AUROlite™ Au/ZnO)</p>Color and Shape:dark purple granulate 1-2mm dia.Gold 1% on titanium dioxide extrudates (AUROlite™ Au/TiO₂)
CAS:<p>Gold 1% on titanium dioxide extrudates (AUROlite™ Au/TiO2)</p>Color and Shape:dark purple/gray extrudates 1.5mm dia. x 5mm (avg)

