O,O-Diethyl thiophosphate potassium salt
O,O-Diethyl thiophosphate potassium salt (CAS: 5871-17-0) is a chemical compound with the molecular formula (C2H5O)2P(O)SK and a molecular weight of 208.26. This organophosphate salt serves as a valuable building block in organic synthesis. It is primarily utilised in chemical research and development for the creation of more complex organic molecules, particularly within the realm of phosphorus-containing compounds.
- Synonyms
- (C2H5O)2P(O)SK

Organic Synthesis Intermediate
O,O-Diethyl thiophosphate potassium salt is employed as a key intermediate in the synthesis of various organic compounds. Its reactive nature allows for its incorporation into complex molecular structures.
Research and Development
This compound is utilised in laboratory settings for research purposes, aiding in the exploration of new chemical reactions and the development of novel materials and pharmaceuticals.
Phosphorus Chemistry
As a phosphorus-containing compound, it is useful in studies and applications involving phosphorus chemistry, contributing to the development of new organophosphorus reagents and materials.
| Molecular weight | 208.26 |
|---|---|
| Linear formula | (C2H5O)2P(O)SK |
| Assay | 98% |
| Melting point | 180-186 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 O,O-Diethyl thiophosphate potassium salt used for?
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O,O-Diethyl thiophosphate potassium salt is primarily used as a building block in organic synthesis and for research and development in phosphorus chemistry.
What is the CAS number and formula for O,O-Diethyl thiophosphate potassium salt?
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The CAS number is 5871-17-0 and the linear formula is (C2H5O)2P(O)SK.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies O,O-Diethyl thiophosphate potassium salt with an assay of 98%. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
What are the safety precautions for handling O,O-Diethyl thiophosphate potassium salt?
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This compound is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, and gloves should be worn. Handle in a well-ventilated area and avoid breathing dust.
How is O,O-Diethyl thiophosphate potassium salt packed and shipped?
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O,O-Diethyl thiophosphate potassium salt is carefully packed for secure transport and is available for global export by Tech Serve Solutions.
How can I request a quote or sample for O,O-Diethyl thiophosphate potassium salt?
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To request a quote or a sample of O,O-Diethyl thiophosphate potassium salt, please contact our sales team through the website or by phone.
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