Difenacoum

Difenacoum
IUPAC name 2-Hydroxy-3-[3-(4-phenylphenyl)-1-tetralinyl]-4-chromenone
Other names Diphenacoum
Identifiers
CAS number	56073-07-5 Y
PubChem	41735
	KEGG	C16807 Y
Jmol-3D images	Image 1
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	211.0 – 215.0 °C (98.7% wlw)
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Difenacoum is an anticoagulant of the 4-hydroxycoumarin vitamin K antagonist type. It has anticoagulant effects and is used commercially 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 radiolabeled 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. ↑ 1.0 1.1 1.2 http://www.epa.gov/opprd001/factsheets/difenacoum.pdf