Chlorfenapyr

Chlorfenapyr
IUPAC name 4-Bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluoromethyl-1H-pyrrole-3-carbonitrile
Identifiers
CAS number	122453-73-0
ChemSpider	82875
UNII	NWI20P05EB
KEGG	C18455 Y
Jmol-3D images	Image 1
SMILES Clc2ccc(c1c(C#N)c(Br)c(n1COCC)C(F)(F)F)cc2
InChI InChI=1/C15H11BrClF3N2O/c1-2-23-8-22-13(9-3-5-10(17)6-4-9)11(7-21)12(16)14(22)15(18,19)20/h3-6H,2,8H2,1H3 Key: CWFOCCVIPCEQCK-UHFFFAOYAO
Properties
Molecular formula	C15H11BrClF3N2O
Molar mass	407.6 g/mol
Density	0.543 g/ml tapped bulk density
Melting point	100-101 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Chlorfenapyr is a pesticide, and specifically a pro-insecticide (meaning it is metabolized into an active insecticide after entering the host), derived from a class of microbially produced compounds known as halogenated pyrroles. The United States Environmental Protection Agency initially denied registration in 2000 for use on cotton primarily because of concerns that the insecticide was toxic to birds and because effective alternatives were available. However, it was registered by EPA in January, 2001 for use on non-food crops in greenhouses. In 2005, EPA established a tolerance for residues of chlorfenapyr in or on all food commodities. Chlorfenapyr works by disrupting the production of Adenosine triphosphate, specifically, "Oxidative removal of the N-ethoxymethyl group of chlorfenapyr by mixed function oxidases forms the compound CL 303268. CL 303268 uncouples oxidative phosphorylation at the mitochondria, resulting in disruption of production of ATP, cellular death, and ultimately organism mortality."

References

• US EPA (2001). "Pesticide Fact Sheet: Chlorfenapyr". http://www.epa.gov/opprd001/factsheets/chlorfenapyr.pdf. Retrieved 2007-04-18. 
• US EPA (2000). "Decision Memorandum: Denial of Registration of Chlorfenapyr for Use on Cotton". http://www.epa.gov/opprd001/chlorfenapyr/chlorfenapyr.pdf. Retrieved 2006-07-28. 

External links

• Effects of Chlorfenapyr on Adult Birds
• Chlorfenapyr; Pesticide Tolerance
• Australian Pesticides and Veterinary Medicines Authority
• PAN Pesticides Database