Potassium ethyl xanthogenate
Potassium ethyl xanthogenate (CAS 140-89-6), molecular formula C2H5OCSSK, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- O-Ethylxanthic acid potassium salt,KEX,Potassium O-ethyl dithiocarbonate,Potassium xanthogenate

| Molecular weight | 160.30 |
|---|---|
| Linear formula | C2H5OCSSK |
| Assay | 96% |
| Solubility | alcohol: soluble(lit.)water: very soluble(lit.) |
| Application | Potassium ethyl xanthogenate (ethyl potassium xanthogenate) has been used:• in synthesis of unsymmetrical sulfides via cross-coupling reaction, using recyclable CuO nanoparticles under ligand-free conditions1• as surfactant to investigate the adsorption of colloidal dye Disperse Blue 3 onto pretreated polyester fabric2• in determination of microgram amounts of cadmium in water samples by substoichiometric radiochemical method3 |
| Melting point | 210 °C (dec.)(lit.) |



Hazard statements
- H251Self-heating; may catch fire
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P235Keep cool
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 96 °C / 204.8 °F |
| Transport (UN / ADR) | UN 3342 4.2 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 15/29-22-36/37/38 |
| Safety statements (S) | 26-37-43 |
| Supplemental hazards | Contact with water liberates toxic gas. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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 Potassium ethyl xanthogenate?
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Potassium ethyl xanthogenate (CAS 140-89-6), molecular formula C2H5OCSSK, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of Potassium ethyl xanthogenate does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium ethyl xanthogenate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Potassium ethyl xanthogenate?
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Potassium ethyl xanthogenate has CAS number 140-89-6 and molecular formula C2H5OCSSK. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Potassium ethyl xanthogenate?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Potassium ethyl xanthogenate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Potassium ethyl xanthogenate be stored?
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Store Potassium ethyl xanthogenate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Potassium ethyl xanthogenate used for?
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Potassium ethyl xanthogenate is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Potassium ethyl xanthogenate?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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