Difenacoum
IUPAC name	2-hydroxy- 3-[3-(4- phenylphenyl)- 1-tetralinyl]- 4-chromenone
Other names	Diphenacoum
Identifiers
CAS number	56073-07-5
PubChem	41735
SMILES	C1C(CC2=CC=CC=C2C1C3=C(OC4=CC=CC=C4C3=O)O)C5=CC=C(C=C5)C6=CC=CC=C6
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)
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.

[edit] Uses

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

[edit] 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].

[edit] References

1. ^ ^{a b c} http://www.epa.gov/opprd001/factsheets/difenacoum.pdf

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