Chloro(trimethylphosphite)gold(I)
Chloro(trimethylphosphite)gold(I) (CAS: 33634-99-0), with the empirical formula C3H9AuClO3P and a molecular weight of 356.50 g/mol, is a gold complex utilised in chemical synthesis. It serves as a valuable reagent, particularly in homogeneous catalysis and inorganic chemistry research. This compound is supplied by TSS with an assay of 97%.

Homogeneous Catalysis
This gold complex can act as a catalyst in various organic transformations. Its unique electronic and steric properties make it suitable for promoting specific reaction pathways.
Chemical Synthesis
Utilised as a precursor or reagent in the synthesis of novel organometallic compounds and complex organic molecules. It offers a route to incorporate gold into target structures.
Inorganic Chemistry Research
Serves as a model compound for studying the coordination chemistry of gold and phosphite ligands. Its behaviour can provide insights into reaction mechanisms and bonding.
| Molecular weight | 356.50 |
|---|---|
| Empirical formula | C3H9AuClO3P |
| Assay | 97% |
| Melting point | 98-100 °C |

Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P305IF IN EYES
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-36/37/38 |
| Safety statements (S) | 26-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Chloro(trimethylphosphite)gold(I) primarily used for?
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Chloro(trimethylphosphite)gold(I) is primarily used as a reagent in chemical synthesis and as a catalyst in homogeneous catalysis and inorganic chemistry research.
What are the CAS number and formula for Chloro(trimethylphosphite)gold(I)?
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The CAS number is 33634-99-0, and the empirical formula is C3H9AuClO3P.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chloro(trimethylphosphite)gold(I) at a purity of 97% assay. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
How should Chloro(trimethylphosphite)gold(I) be handled safely?
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This compound is classified as Danger, Toxic if swallowed, causes skin irritation, causes serious eye irritation, and may cause respiratory irritation (H301-H315-H319-H335). Handle with appropriate personal protective equipment, including gloves, eye protection, and respiratory protection in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling procedures.
How is Chloro(trimethylphosphite)gold(I) packed and shipped?
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This product is shipped as UN 2811, Toxic Solid, Organic, N.O.S. (Chloro(trimethylphosphite)gold(I)), 6.1, PGIII. Packaging complies with international transport regulations for hazardous materials.
How can I request a sample or quote for Chloro(trimethylphosphite)gold(I)?
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Please contact our sales team via the website or by calling [Phone Number]. Provide the product name and CAS number (33634-99-0) to expedite your request.
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