Date published: 2026-4-26

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Fluomethuron (CAS 2164-17-2)

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Alternate Names:
1,1-Dimethyl-3-[3-(trifluoromethyl)phenyl]urea; Fluometuron
CAS Number:
2164-17-2
Molecular Weight:
232.20
Molecular Formula:
C10H11F3N2O
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Fluomethuron, classified as a phenylurea herbicide, is widely employed to control broad-leaf weeds and grasses that can negatively impact crops like cotton and sugarcane. It also provides pre-emergence protection for bush fruits, citrus, and asparagus. The primary mode of action of fluomethuron involves inhibiting the Hill reaction, specifically targeting the oxygen evolution site in photosystem II. This inhibition disrupts the formation of ATP and NADPH, essential for carbon dioxide fixation.


Fluomethuron (CAS 2164-17-2) References

  1. Sorption and desorption kinetics of diuron, fluometuron, prometryn and pyrithiobac sodium in soils.  |  Baskaran, S. and Kennedy, IR. 1999. J Environ Sci Health B. 34: 943-63. PMID: 10565420
  2. Bioassay of Fluometuron for Possible Carcinogenicity (CAS No. 2164-17-2).  |  ,. 1980. Natl Toxicol Program Tech Rep Ser. 195: 1-99. PMID: 12778184
  3. Controlled release of the herbicide, fluometuron, from matrix granules based on fractionated organosolv lignins.  |  Zhao, J. and Wilkins, RM. 2003. J Agric Food Chem. 51: 4023-8. PMID: 12822941
  4. Influence of watershed system management on herbicide concentrations in Mississippi Delta oxbow lakes.  |  Zablotowicz, RM., et al. 2006. Sci Total Environ. 370: 552-60. PMID: 17005240
  5. Photo-induced fluorescence of fluometuron in a continuous-flow multicommutation assembly.  |  Cydzik, I., et al. 2007. J Fluoresc. 17: 29-36. PMID: 17165123
  6. Degradation and sorption of fluometuron and metabolites in conservation tillage soils.  |  Locke, MA., et al. 2007. J Agric Food Chem. 55: 844-51. PMID: 17263484
  7. Photolysis of fluometuron in the presence of natural water constituents.  |  Halladja, S., et al. 2007. Chemosphere. 69: 1647-54. PMID: 17604822
  8. Microbial degradation of fluometuron is influenced by roundup weatherMAX.  |  Lancaster, SH., et al. 2008. J Agric Food Chem. 56: 8588-93. PMID: 18729373
  9. Utility of Nicotiana tabacum cell suspension cultures expressing human CYP1A1, CYP1A2 and CYP3A4 to study the oxidative metabolism of the herbicide 14C-fluometuron.  |  Breuer, MA., et al. 2009. Drug Metab Lett. 3: 18-27. PMID: 19356113
  10. Organoclays as soil amendments to increase the efficacy and reduce the environmental impact of the herbicide fluometuron in agricultural soils.  |  Gámiz, B., et al. 2010. J Agric Food Chem. 58: 7893-901. PMID: 20545302
  11. Comparative sorption and leaching study of the herbicides fluometuron and 4-chloro-2-methylphenoxyacetic acid (MCPA) in a soil amended with biochars and other sorbents.  |  Cabrera, A., et al. 2011. J Agric Food Chem. 59: 12550-60. PMID: 22023336
  12. Haemoglobin adducts as biomarkers of exposure to the herbicides propanil and fluometuron.  |  McClure, GY., et al. 1996. Biomarkers. 1: 136-40. PMID: 23888924
  13. Acute and additive toxicity of ten photosystem-II herbicides to seagrass.  |  Wilkinson, AD., et al. 2015. Sci Rep. 5: 17443. PMID: 26616444
  14. Determination of azoxystrobin, topramezone, acetamiprid, fluometuron and folpet in their commercially available pesticide formulations by liquid chromatography.  |  Balayiannis, GP. and Karasali, H. 2021. J Environ Sci Health B. 56: 503-511. PMID: 33970794
  15. Pesticides in fruits and vegetables from the Souss Massa region, Morocco.  |  Choubbane, H., et al. 2022. Food Addit Contam Part B Surveill. 15: 79-88. PMID: 35076356

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Fluomethuron, 250 mg

sc-257533
250 mg
$312.00