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12148 Sodium tetrachloroaurate(III) dihydrate, Premion®, 99.99% (metals basis), Au 49-50%

CAS Number
Sodium chloroaurate(III)
Gold sodium chloride

Stock No. Size Price ($) Quantity Availability
12148-03 1g 134.00
12148-06 5g 596.00
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Sodium tetrachloroaurate(III) dihydrate, Premion®, 99.99% (metals basis), Au 49-50%


Chemical Properties

Formula Weight
397.80 (361.77anhy)
Melting point
100° dec.
Storage & Sensitivity
Ambient temperatures.
Soluble in water, alcohol and ether.


It is used in chemo-therapeutics. It is employed as a catalyst in the removal of tert-butyl(dimethyl)silyl (TBS) protecting groups. It is selective in the presence of aromatic TBS ethers, aliphatic triisopropylsilyl ethers, aliphatic tert-butyl(diphenyl)silyl ethers, or sterically hindered aliphatic TBS ethers. With excess catalyst, TBS ethers can also be transformed into 4-methoxybenzyl ethers or methyl ethers in one pot.


Incompatible with organic solvents, acids, bases, oxidizing agents, and ammonia.

Literature References

Shi, R. X.; Liu, Y. K.; Xu, Z. Y. Sodium tetrachloroaurate(III) dihydrate-catalyzed efficient synthesis of 1,5-benzodiazepine and quinoxaline derivatives. J. Zhejiang Univ.-SCI. B 2010, 11 (2), 102-108.

Fong, Y. Y.; Visser, B. R.; Gascooke, J. R.; Cowie, B. C. C.; Thomsen, L.; Metha, G. F.; Buntine, M. A.; Harris, H. H. Photoreduction Kinetics of Sodium Tetrachloroaurate under Synchrotron Soft X-ray Exposure. Langmuir 2011, 27 (13), 8099-8104.

Qi, Z.; Xiugin, K.; Lei, L.; Lijuan, Z.; Yonghai, C. Mild and Selective Deprotection of tert-Butyl(dimethyl)silyl Ethers with Catalytic- Amounts of Sodium Tetrachloroaurate(III) Dihydrate. Synthesis 2015, 47 (1), 55-64.

GHS Hazard and Precautionary Statements

Hazard Statements: H290-H302-H314-H335

May be corrosive to metals. Harmful if swallowed. Causes severe skin burns and eye damage. May cause respiratory irritation.

Precautionary Statements: P234-P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P390-P501c

Keep only in original container. Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Do NOT induce vomiting. Wash contaminated clothing before reuse. Absorb spillage to prevent material damage. Dispose of contents/ container to an approved waste disposal plant

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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