Ethyl dichlorophosphate
Ethyl dichlorophosphate (CAS: 1498-51-7) is an organophosphorus compound with the formula C2H5OP(O)Cl2 and a molecular weight of 162.94 g/mol. It serves as a valuable intermediate in organic synthesis, particularly for introducing phosphate groups into molecules. Its reactivity makes it useful in the preparation of various phosphorus-containing compounds and in chemical research applications.
- IUPAC
- Ethyl phosphorodichloridate

Organic Synthesis Intermediate
Ethyl dichlorophosphate is employed as a reagent in the synthesis of diverse organic compounds. It facilitates the incorporation of phosphorus moieties, enabling the formation of phosphonates and other organophosphorus structures.
Phosphorylation Agent
This compound acts as an effective phosphorylating agent in various chemical reactions. It is used to introduce the dichlorophosphate functional group, which can then be further modified.
Research and Development
Utilized in laboratory settings for research purposes, Ethyl dichlorophosphate aids in the exploration of new synthetic pathways and the development of novel phosphorus-based materials and compounds.
| Molecular weight | 162.94 |
|---|---|
| Linear formula | C2H5OP(O)Cl2 |
| Assay | 96% |
| Boiling point | 60-65 °C/10 mmHg(lit.) |
| Density | 1.373 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.434(lit.) |


Hazard statements
- H301Toxic if swallowed
- H314Causes severe skin burns and eye damage
- H330Fatal if inhaled
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
- 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 | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3390 6.1/PG 1 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+,C |
| Risk statements (R) | 26-34 |
| Safety statements (S) | 26-28-36/37/39-45 |
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 Ethyl dichlorophosphate used for?
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Ethyl dichlorophosphate is primarily used as an intermediate in organic synthesis and as a phosphorylating agent for introducing phosphorus groups into molecules, particularly in research and development settings.
What are the CAS number and chemical formula for Ethyl dichlorophosphate?
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The CAS number is 1498-51-7, and its chemical formula is C2H5OP(O)Cl2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl dichlorophosphate with an assay of 96%. We do not represent this product as USP, BP, or EP grade.
How should Ethyl dichlorophosphate be handled?
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Ethyl dichlorophosphate is a dangerous substance that causes severe skin burns and eye damage and is toxic if swallowed or inhaled. Handle with extreme caution using appropriate personal protective equipment, including a face shield, respirator, gloves, and goggles, in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling procedures.
How is Ethyl dichlorophosphate shipped or exported?
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Ethyl dichlorophosphate is classified under UN 3390, Class 6.1, Packing Group I. Tech Serve Solutions exports this chemical adhering to all relevant transportation regulations.
How can I request a sample or quote for Ethyl dichlorophosphate?
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To request a sample or a quote, please contact our sales department through the website or via the provided contact information, specifying the product name and CAS number.
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