Tetrakis(hydroxymethyl)phosphonium chloride solution
Tetrakis(hydroxymethyl)phosphonium chloride solution (CAS: 124-64-1) is an organophosphorus compound supplied by Tech Serve Solutions. With the linear formula (HOCH2)4PCl and a molecular weight of 190.56 g/mol, this chemical is primarily utilised in synthetic chemistry and as a phase transfer catalyst. Its aqueous solution formulation is designed for ease of handling and integration into various chemical processes.

Phase Transfer Catalysis
Tetrakis(hydroxymethyl)phosphonium chloride solution serves as an effective phase transfer catalyst, facilitating reactions between reactants in immiscible phases. This enhances reaction rates and yields in organic synthesis.
Chemical Synthesis
This compound is a versatile reagent in chemical synthesis, employed in the preparation of various organic molecules. Its phosphonium salt structure makes it valuable for specific synthetic transformations.
Precursor for Other Phosphonium Salts
The compound can act as a precursor for the synthesis of other functionalised phosphonium salts, expanding its utility in materials science and specialised chemical development.
| Molecular weight | 190.56 |
|---|---|
| Linear formula | (HOCH2)4PCl |
| Density | 1.341 g/mL at 25 °C |
| Refractive index | n20/D 1.512 |
| Concentration | 80% in H2O |




Hazard statements
- H301Toxic if swallowed
- H311Toxic in contact with skin
- H315Causes skin irritation
- H318Causes serious eye damage
- H334May cause allergy or asthma symptoms if inhaled
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P342
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 2810 6.1/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 21-25-38-41-42/43-51/53 |
| Safety statements (S) | 23-26-36/37/39-45-61 |
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 Tetrakis(hydroxymethyl)phosphonium chloride solution used for?
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Tetrakis(hydroxymethyl)phosphonium chloride solution is primarily used in chemical synthesis and as a phase transfer catalyst.
What is the CAS number and formula for Tetrakis(hydroxymethyl)phosphonium chloride solution?
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The CAS number is 124-64-1 and the linear formula is (HOCH2)4PCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetrakis(hydroxymethyl)phosphonium chloride solution at 80% in H2O. We do not represent this product as USP, BP, or EP grade.
How should Tetrakis(hydroxymethyl)phosphonium chloride solution be handled?
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Handling requires significant precautions due to its corrosive and toxic nature. Users must wear appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a suitable respirator. Refer to the safety data sheet for detailed handling instructions.
How is Tetrakis(hydroxymethyl)phosphonium chloride solution packed and shipped?
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This chemical is classified under UN 2810, Hazard Class 6.1, Packing Group III. It is shipped according to regulations for toxic substances.
How can I request a quote or sample?
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Please contact our sales department through the website or by phone to request a quote or a sample of Tetrakis(hydroxymethyl)phosphonium chloride solution.
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