Difethialone

Difethialone is an anticoagulant used as a rodenticide.[1] It is considered a second generation agent.[2]

Difethialone

Names
IUPAC name 3-[3-[4-(4-Bromophenyl)phenyl]-1-tetralinyl]-2-hydroxy-4-thiochromenone
Identifiers
CAS Number	104653-34-1
3D model (JSmol)	Interactive image
ChemSpider	10469311
ECHA InfoCard	100.118.383
KEGG	C18695
PubChem CID	91771
UNII	KOL4VXI5O0
CompTox Dashboard (EPA)	DTXSID4032374
InChI InChI=1S/C31H23BrO2S/c32-24-15-13-20(14-16-24)19-9-11-21(12-10-19)23-17-22-5-1-2-6-25(22)27(18-23)29-30(33)26-7-3-4-8-28(26)35-31(29)34/h1-16,23,27,33H,17-18H2 Key: JHELOZJAKXYVBE-UHFFFAOYSA-N InChI=1/C31H23BrO2S/c32-24-15-13-20(14-16-24)19-9-11-21(12-10-19)23-17-22-5-1-2-6-25(22)27(18-23)29-30(33)26-7-3-4-8-28(26)35-31(29)34/h1-16,23,27,33H,17-18H2 Key: JHELOZJAKXYVBE-UHFFFAOYAX
SMILES C1C(CC2=CC=CC=C2C1C3=C(SC4=CC=CC=C4C3=O)O)C5=CC=C(C=C5)C6=CC=C(C=C6)Br
Properties
Chemical formula	C31H23BrO2S
Molar mass	539.49 g·mol^−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

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][4]

References

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". Annales de Recherches Vétérinaires. 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 Journal of Experimental Biology. 41 (6): 655–8. PMID 15266918.
3. EPA, OCSPP, OPP, US (2014-03-04). "Restrictions on Rodenticide Products". www.epa.gov.
4. "Regulations.gov". www.regulations.gov.