Spherical Gold Nanoparticles - 70 Nm,0.03 MG/ML,solvent: Ultrapure water , CAS No.7440-57-5

CAS: 7440-57-5 Cat. No.: S359079 Molecular Weight: 196.97 EC Number: 231-165-9 PubChem CID: 23985
AVAILABLE TO ORDER
GRADE & PURITY 70 Nm,0.03 MG/ML,solvent: Ultrapure water
Synonyms
7440-57-5|Au|Gold|Colloidal gold|Gold powder|Gold flake|Gold leaf|Gold, colloidal|Aurum Metallicum|Gold, elemental|HSDB 2125|Gold foil|Gold wire|CI 77480|EINECS 231-165-9|Gold-197|UNII-79Y1949PYO|auride(1-)|gold(0)|79Y1949PYO|C.I. 77480|Gold (e 175)|Au(0)
Storage
Store at 2-8°C,Protected from light
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5ml
S359079-5ml
1
$140.90
25ml
S359079-25ml
1
$489.90
Enter a quantity for the sizes you want to add.
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Why this grade

70 Nm,0.03 MG/ML,solvent: Ultrapure water for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

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

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Quality documents

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

📚

Literature proof

Cited in 25 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
7440-57-5 | Au | Gold | Colloidal gold | Gold powder | Gold flake | Gold leaf | Gold, colloidal | Aurum Metallicum | Gold, elemental | HSDB 2125 | Gold foil | Gold wire | CI 77480 | EINECS 231-165-9 | Gold-197 | UNII-79Y1949PYO | auride(1-) | gold(0) | 79Y1949PYO | C.I. 77480 | Gold (e 175) | Au(0)
Specifications & Purity
70 Nm, 0.03 MG/ML, solvent: Ultrapure water
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 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.

2 results found

Lot NumberCertificate TypeDateItem
E2422404Certificate of AnalysisJun 11, 2026 S359079
E2422468Certificate of AnalysisJun 11, 2026 S359079
Chemical and Physical Properties
Boil Point(°C)2808°C
Melt Point(°C)1063°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
Documents & Articles
Citations of This Product
References
1. Jun Wang, Jiawen Han, Juan Wang, Xujuan Lv, Daoqing Fan, Shaojun Dong.  (2023)  A cost-effective, “mix & act” G-quadruplex/Cu (II) metal-nanozyme-based ratiometric fluorescent platform for highly sensitive and selective cysteine/bleomycin detection and multilevel contrary logic computing.  BIOSENSORS & BIOELECTRONICS,      [PMID:37924655] [10.1016/j.bios.2023.115801]
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7. Xiao-fang Ma, Qi Zhao, Yan Cheng, Dong-Mei Yan, Wei-Feng Zhu, Fei Li.  (2021)  Metabolomics reveals the role of isopentenyl group in coumarins metabolism.  BIOMEDICAL CHROMATOGRAPHY,  36  (1): (e5239).  [PMID:34494281] [10.1002/bmc.5239]
8. Feng Feng, Jiamei Liu, Mingxing Zhao, Lu Yu, Haixin Wang, Chunshan Lu, Qunfeng Zhang, Jia Zhao, Yanxia Sun, Jie Cen, Xiaonian Li.  (2021)  Study of an Environmentally Friendly Method for the Dissolution of Precious Metal with Ionic Liquid and Iodoalkane.  Metals,  11  (6): (919).  [PMID:] [10.3390/met11060919]
9. Jinyao Zhong, Zheng Xiao, Wenyue Liang, Yifei Wu, Qiaojue Ye, Haitao Xu, Haidong Deng, Liang Shen, Xiliang Feng, Yongbing Long.  (2019)  Highly Efficient and High Peak Transmittance Colorful Semitransparent Organic Solar Cells with Hybrid-Electrode-Mirror Microcavity Structure.  ACS Applied Materials & Interfaces,      [PMID:31789018] [10.1021/acsami.9b19174]
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12. Gang Lu, Peng Zhang, Dongqing Sun, Lei Wang, Kebin Zhou, Zhi-Xiang Wang, Guo-Cong Guo.  (2013)  Gold catalyzed hydrogenations of small imines and nitriles: enhanced reactivity of Au surface toward H2via collaboration with a Lewis base.  Chemical Science,  (3): (1082-1090).  [PMID:] [10.1039/C3SC52851K]
13. Shi Peng, Qiang Zheng, Xin Zhang, Linghui Dai, Jingxian Zhu, Yanbin Pi, Xiaoqing Hu, Wenqing Cheng, Chunyan Zhou, Yinlin Sha, Yingfang Ao.  (2013)  Detection of ADAMTS-4 Activity Using a Fluorogenic Peptide-Conjugated Au Nanoparticle Probe in Human Knee Synovial Fluid.  ACS Applied Materials & Interfaces,      [PMID:23716507] [10.1021/am400854z]
14. Yijing Kuang, Wei Yuan, Xuyuan Chen, Xiaoning Wang, Xiaoying Wang.  (2025)  A dual-mode immunosensor for detection of oncoprotein c-Myc via indirect competition using trimetallic nanocomposite as an excellent label.  ANALYTICA CHIMICA ACTA,      [PMID:39984205] [10.1016/j.aca.2025.343724]
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