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CAS number 104653-34-1 YesY
PubChem 91771
KEGG C18695 YesY
Jmol-3D images Image 1
Molecular formula C31H23BrO2S
Molar mass 539.48212
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Difethialone is an anticoagulant used as a rodenticide.[1]

It is considered a second generation agent.[2]

In May 2008 the United States Environmental Protection Agency banned the use of difethialone in consumer-use rodenticide products and also for exterior use by commercial applicators.[3]


  1. ^ Nahas K, Lorgue G, Mazallon M (1989). "Difethialone (LM-2219): a new anticoagulant rodenticide for use against warfarin-resistant and -susceptible strains of Rattus norvegicus and Mus musculus". Ann. Rech. Vet. 20 (2): 159–64. PMID 2751229. 
  2. ^ Saravanan K, Kanakasabai R, Thiyagesan K (June 2003). "Field evaluation of difethialone, a new second generation anticoagulant rodenticide in the rice fields". Indian J. Exp. Biol. 41 (6): 655–8. PMID 15266918. 
  3. ^ http://www.epa.gov/pesticides/reregistration/rodenticides/finalriskdecision.htm