Chloromethylphosphonic dichloride
Chloromethylphosphonic dichloride (CAS: 1983-26-2) is a reactive organophosphorus compound with the linear formula ClCH2P(O)Cl2 and a molecular weight of 167.36. This compound serves as a valuable building block in organic synthesis. Its dichloride functionality allows for diverse chemical transformations, making it a key intermediate in the preparation of various phosphorus-containing molecules. Tech Serve Solutions offers this chemical with an assay of 97%.

Organic Synthesis Intermediate
Chloromethylphosphonic dichloride is utilized as a versatile intermediate in the synthesis of complex organic molecules. It enables the introduction of the chloromethylphosphonyl group into various substrates.
Phosphorus Compound Synthesis
This compound is a precursor for a range of organophosphorus compounds. Its reactivity facilitates the formation of new P-C and P-O bonds, leading to diverse phosphorus derivatives.
Research and Development
In R&D settings, Chloromethylphosphonic dichloride is employed for exploring novel synthetic pathways and developing new materials. Its unique chemical structure makes it suitable for investigative chemistry.
| Molecular weight | 167.36 |
|---|---|
| Linear formula | ClCH2P(O)Cl2 |
| Assay | 97% |
| Boiling point | 78-82 °C/10 mmHg(lit.) |
| Density | 1.638 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.497(lit.) |


Hazard statements
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-34-36/37 |
| Safety statements (S) | 26-36/37/39-45 |
| Supplemental hazards | Reacts violently with water. |
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 Chloromethylphosphonic dichloride used for?
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Chloromethylphosphonic dichloride is primarily used as a building block and intermediate in organic synthesis, particularly for creating phosphorus-containing compounds.
What is the CAS number and formula for Chloromethylphosphonic dichloride?
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The CAS number is 1983-26-2 and the linear formula is ClCH2P(O)Cl2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chloromethylphosphonic dichloride with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should Chloromethylphosphonic dichloride be handled safely?
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Chloromethylphosphonic dichloride is corrosive and reacts violently with water. Handle with extreme care using appropriate personal protective equipment including faceshields, gloves, goggles, and suitable respirators. Avoid contact with water and ensure adequate ventilation.
How is Chloromethylphosphonic dichloride packed and exported?
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This product is shipped as UN 3265, Hazard Class 8, Packing Group II. Tech Serve Solutions handles its export according to international shipping regulations.
How can I request a quote or sample?
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Please contact Tech Serve Solutions directly via our website or sales team to request a quote or a sample of Chloromethylphosphonic dichloride.
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