O,O′-Diethyl dithiophosphate
O,O′-Diethyl dithiophosphate (CAS: 298-06-6) is an organophosphate compound with the molecular formula (C2H5O)2P(S)SH and a molecular weight of 186.23 g/mol. This chemical serves as a valuable building block in organic synthesis and finds application in the production of various phosphorus-containing compounds. Tech Serve Solutions offers this reagent with a typical assay of 90%, suitable for research and chemical synthesis purposes.
- Synonyms
- (C2H5O)2P(S)SH

Organic Synthesis Intermediate
Utilised as a key building block in complex organic syntheses, facilitating the construction of novel molecules and intermediates. Its reactive functional groups enable diverse chemical transformations.
Phosphorus Compound Precursor
Serves as a precursor in the synthesis of various organophosphate and phosphorus-containing compounds. It is instrumental in introducing specific phosphorus functionalities into target molecules.
Chemical Research Reagent
Employed in laboratory settings for fundamental research and development. Its well-defined chemical properties make it a reliable reagent for exploring new synthetic pathways.
| Molecular weight | 186.23 |
|---|---|
| Linear formula | (C2H5O)2P(S)SH |
| Assay | 90% |
| Boiling point | 60 °C/1 mmHg(lit.) |
| Density | 1.11 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.512(lit.) |
| Storage temperature | 2-8°C |


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 |
|---|---|
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25-34 |
| Safety statements (S) | 26-36/37/39-45 |
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 O,O′-Diethyl dithiophosphate used for?
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O,O′-Diethyl dithiophosphate is primarily used as a building block in organic synthesis and as a precursor for various phosphorus-containing compounds in research and chemical manufacturing.
What is the CAS number and formula for O,O′-Diethyl dithiophosphate?
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The CAS number is 298-06-6 and the linear formula is (C2H5O)2P(S)SH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies O,O′-Diethyl dithiophosphate with a typical assay of 90%. This product is intended for research and chemical synthesis and is not represented as USP, BP, EP, or pharmacopoeia grade.
How should O,O′-Diethyl dithiophosphate be handled safely?
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O,O′-Diethyl dithiophosphate is a dangerous chemical. It is toxic if swallowed, in contact with skin, and if inhaled; it causes severe skin burns and eye damage. Handle with appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling instructions.
How is O,O′-Diethyl dithiophosphate packed and shipped?
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O,O′-Diethyl dithiophosphate is shipped in compliance with international regulations for hazardous materials. Packaging is designed to ensure product integrity and safety during transit.
How can I request a sample or quote for O,O′-Diethyl dithiophosphate?
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To request a sample or a quote, please contact our sales team via the website or by phone, providing your contact details and the required quantity.
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