Fluridone

Fluridone
Names
IUPAC name
1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]pyridin-4-one
Other names
Sonar; Avast!; Whitecap
Identifiers
59756-60-4
ChemSpider 39255
Jmol-3D images Image
KEGG C18857
PubChem 43079
Properties
C19H14F3NO
Molar mass 329.3 g/mol
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Fluridone is an aquatic herbicide often used to control invasive plants. It is sold under the names Sonar, Avast! and Whitecap and is used in the United States to control hydrilla and Eurasian watermilfoil among other species. It is a systemic herbicide that works by interfering with carotene formation which leads to chlorophyll degradation.[1] Fluridone is sold as a liquid and as a slow release solid because the herbicide level must be maintained for several weeks.

The chemical was first reported as a possible herbicide for cotton fields in 1976.[2] It was registered with the U.S. Environmental Protection Agency in 1986 and has low toxicity to animals[3] with no restrictions on swimming or drinking in treated water bodies.[4] Fluridone breaks downs in the environment over days or weeks with the major degradation product being N-methyl formamide.

References

  1. Fluridone: herbicide treatment FAQ, Cornell Cooperative Extension Tompkins County, July 17, 2013
  2. 1-Methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinone, a new herbicide, Thomas W. Waldrep, Harold M. Taylor, J. Agric. Food Chem., 1976, 24 (6), pp 1250–1251, DOI: 10.1021/jf60208a047, November 1976
  3. Fluridone - Human Health and Ecological Risk Assessment - Final Report, Syracuse Environmental Research Associates for USDA/Forest Service, Southern Region, November 25, 2008
  4. Report of the Food Quality Protection Act (FQPA) Tolerance Reassessment Progress and Risk Management Decision (TRED) for Fluridone, UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, September 20, 2004

External links