Date published: 2026-1-13

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O,O,S-Triethyl Phosphorothiolate (CAS 1186-09-0)

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Alternate Names:
Phosphorothioic Acid O,O,S-Triethyl Ester; Ethyl Phosphorothioate ((EtO)2(EtS)PO); Ethyl Thiophosphate ((EtO)2(EtS)PO); O,O,S-Triethyl Thiophosphate; O,O-Diethyl S-Ethyl Phosphorothioate; Thiophosphoric Acid O,O,S-Triethyl Ester; Triethyl Phosphorothioate
CAS Number:
1186-09-0
Molecular Weight:
198.22
Molecular Formula:
C6H15O3PS
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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O,O,S-Triethyl thiophosphate is an organosulfur compound that plays a significant role in the manufacturing of pesticides, dyes, and other industrial products. O,O,S-Triethyl thiophosphate serves as a key ingredient in organic compound synthesis, aiding in the creation of novel materials and catalysts. O,O,S-Triethyl thiophosphate has proven instrumental in exploring biochemical processes. It is hypothesized that O,O,S-Triethyl thiophosphate acts as a catalyst in organic compound synthesis, promoting the formation of covalent bonds between different molecules. It is believed to partake in the formation of polymeric structures, assuming the role of a cross-linking agent.


O,O,S-Triethyl Phosphorothiolate (CAS 1186-09-0) References

  1. Multiple-technique analytical characterization of a mixture containing chemical-weapons simulant from a munition.  |  Brickhouse, MD., et al. 2000. J Chromatogr A. 883: 185-98. PMID: 10910213
  2. Mechanism and kinetics of parathion degradation under ultrasonic irradiation.  |  Yao, JJ., et al. 2010. J Hazard Mater. 175: 138-45. PMID: 19854573
  3. Conversion of Alcohols to Phosphorothiolates Using a Thioiminium Salt as Coupling Agent.  |  Grounds, H., et al. 2017. J Org Chem. 82: 12735-12739. PMID: 29059523
  4. Sequential and dose-dependent alterations in rat bronchiolar epithelium during O,O,S-trimethyl phosphorothioate induced delayed toxicity.  |  Gandy, J., et al. 1984. J Pathol. 143: 127-37. PMID: 6737119
  5. Morphological alterations of rat lung bronchiolar epithelium produced by various trialkyl phosphorothioates.  |  Gandy, J., et al. 1984. Toxicology. 32: 37-46. PMID: 6740710
  6. Toxicological properties of phosphorothioate and related esters present as impurities in technical organophosphorus insecticides.  |  Umetsu, N., et al. 1981. J Toxicol Environ Health. 7: 481-97. PMID: 7288900

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

O,O,S-Triethyl Phosphorothiolate, 250 mg

sc-473250
250 mg
$347.00

O,O,S-Triethyl Phosphorothiolate, 2.5 g

sc-473250A
2.5 g
$2448.00