Difenacoum

Difenacoum
Difenacoum
IUPAC name
2-hydroxy- 3-[3-(4- phenylphenyl)- 1-tetralinyl]- 4-chromenone
Other names
Diphenacoum
Identifiers
CAS number 56073-07-5
PubChem 41735
KEGG C16807 YesY
Jmol-3D images Image 1
Properties
Molecular formula C31H24O3
Molar mass 444.52 g/mol
Density 1.27 (98.7% w/w)
Melting point

21 1.0 - 215.0°C (98.7% wlw)
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Difenacoum is a coumarin derivative. It has anticoagulant effects and is used as a rodenticide.

Uses

Difenacoum is sold as blue-green pellets intended to be ingested by pests such as rats and mice.

Safety and toxicity

Because other species of mammals and birds may prey upon affected rodents, there is a risk of secondary or tertiary exposure[1]. Using radiolabled isotopes, difenacoum (and/or its metabolites) has been shown to be distributed across many organ tissues upon oral ingestion, with the highest concentrations occurring in the liver and pancreas[1].

Difenacoum has been shown to be highly toxic to some species of freshwater fish and green algae despite the fact that difenacoum is weakly soluble in aqueous solutions[1].

References

  1. ^ a b c http://www.epa.gov/opprd001/factsheets/difenacoum.pdf
v · d · ePest control: rodenticides
Anticoagulants/
vitamin K antagonists

coumarins/4-Hydroxycoumarins: 1st generation (Warfarin, Coumatetralyl) • 2nd generation (Brodifacoum, Difenacoum, Flocoumafen)

1,3-Indandiones: Chlorophacinone • Pindone • Diphacinone

other: Difethialone
Convulsants
Crimidine • Phenylsilatrane • Strychnine • Tetramethylenedisulfotetramine
Calciferols
Inorganic compounds
Organochlorine
Organophosphorus
Phosacetim
Metabolic poisons
Bromethalin • Fluoroacetamide • 1,3-Difluoro-2-propanol (Gliftor) • Sodium fluoroacetate
Other
α-Naphthylthiourea • Norbormide • Pyrinuron • Scilliroside
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