Tetraphenylarsonium(V) chloride hydrochloride hydrate
Tetraphenylarsonium(V) chloride hydrochloride hydrate (CAS: 123334-18-9) is a chemical compound featuring a tetraphenylarsonium cation with associated chloride and hydrochloride counterions, often in a hydrated form. Its empirical formula is (C 6 H 5 ) 4 AsCl·HCl·xH 2 O. With a molecular weight of 455.25 g/mol (anhydrous basis), this compound is primarily utilised in catalysis, inorganic chemistry, and broader chemical synthesis, serving as a reagent and intermediate.

Catalysis
This compound can serve as a catalyst or pre-catalyst in various organic transformations. Its ionic structure and the presence of arsenic may influence reaction pathways and selectivity in specific synthetic routes.
Inorganic Chemistry
It finds application in inorganic synthesis and research, potentially as a source of the tetraphenylarsonium cation for studying ion-pairing phenomena or in the preparation of other organoarsenic compounds.
Chemical Synthesis
As a specialised reagent, Tetraphenylarsonium(V) chloride hydrochloride hydrate is employed in complex chemical syntheses. Its unique structure allows for specific applications in the development of novel materials or active pharmaceutical ingredients.
| Molecular weight | 455.25 (anhydrous basis) |
|---|---|
| Linear formula | (C6H5)4AsCl·HCl·xH2O |
| Melting point | 211-213 °C(lit.) |


Hazard statements
- H301Toxic if swallowed
- H331Toxic if inhaled
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
- P501Dispose of contents and container per local regulations
| Transport (UN / ADR) | UN 3077 9 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/25-50/53 |
| Safety statements (S) | 20/21-28-45-60-61 |
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 Tetraphenylarsonium(V) chloride hydrochloride hydrate used for?
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Tetraphenylarsonium(V) chloride hydrochloride hydrate is used in catalysis, inorganic chemistry, and chemical synthesis as a reagent or intermediate.
What are the CAS number and formula for Tetraphenylarsonium(V) chloride hydrochloride hydrate?
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The CAS number is 123334-18-9 and the linear formula is (C 6 H 5 ) 4 AsCl·HCl·xH 2 O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and laboratory use. The specific grade and purity should be confirmed with our sales team, as we do not represent it as USP, BP, or EP grade.
How should Tetraphenylarsonium(V) chloride hydrochloride hydrate be handled?
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Tetraphenylarsonium(V) chloride hydrochloride hydrate is acutely toxic if swallowed or inhaled and very toxic to aquatic life with long-lasting effects (H301-H331-H410). Handle with appropriate personal protective equipment in a well-ventilated area. Avoid release to the environment. Refer to the Safety Data Sheet (SDS) for full handling instructions.
Is Tetraphenylarsonium(V) chloride hydrochloride hydrate a controlled substance?
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The provided data does not indicate that Tetraphenylarsonium(V) chloride hydrochloride hydrate is a controlled substance.
How is Tetraphenylarsonium(V) chloride hydrochloride hydrate packed and shipped?
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This product is typically packed and shipped according to international regulations for hazardous materials (UN 3077, Class 9, PGIII). Specific packaging and export details can be provided upon request.
How can I request a quote or sample?
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To request a quote or a sample, please contact our sales department through the contact information available on the Tech Serve Solutions website.
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