Flumioxazin

Flumioxazin
Names
IUPAC name
2-(7-Fluoro-3-oxo-4-prop-2-ynyl-1,4-benzoxazin-6-yl)-4,5,6,7-tetrahydroisoindole-1,3-dione
Other names
Flumioxazine
Identifiers
3D model (JSmol)
ECHA InfoCard 100.113.142
  • C#CCN1C(=O)COC2=CC(=C(C=C21)N3C(=O)C4=C(C3=O)CCCC4)F
Properties
C19H15FN2O4
Molar mass 354.337 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Flumioxazin is a synthetic herbicide used for control of broadleaf weeds in agricultural areas.[1] Valent U.S.A. Corporation, a division of Sumitomo Chemical, developed flumioxazin, which was approved by the U.S. EPA in 2001 for use on soybean and peanut crops.[2] Flumioxazin has gained popularity due to pesticide resistance toward earlier active ingredients.[3]

Flumioxazin is also used to control aquatic plants such as filamentous algae. In granular form, it is used to control of submerged plants, and as a direct foliar application it is used to control emergent and floating-leaf plants.[4]

Mode of Action

Flumioxazin is an inhibitor of the enzyme protoporphyrinogen oxidase which then interferes with the plant's chlorophyll production.[5]

Manufacture

The production of flumioxazin involves the use of 2,4-Difluoronitrobenzene as a crucial raw material.[3]

References

  1. ^ "Flumioxazin: Environmental Fate and Ecological Risk Assessment" (PDF). United States Environmental Protection Agency.
  2. ^ "Flumioxazin: Pesticide Fact Sheet" (PDF). U.S. EPA. 2001. Retrieved 2 May 2025.
  3. ^ a b Guo, Shuai; Zhan, Le-wu; Li, Bin-dong (December 2023). "Mixing intensification and kinetics of 2,4-difluoronitrobenzene homogeneous nitration reaction in a heart-shaped continuous-flow microreactor". Chemical Engineering Journal. 477: 147011. doi:10.1016/j.cej.2023.147011.
  4. ^ "Flumioxazin Chemical Fact Sheet" (PDF). Wisconsin Department of Natural Resources. 2012.
  5. ^ Iwashita, Katsumasa; Hosokawa, Yoshinori; Ihara, Ryo; Miyamoto, Taiki; Otani, Mitsuhiro; Abe, Jun; Asano, Koji; Mercier, Odile; Miyata, Kaori; Barlow, Susan (2022). "Flumioxazin, a PPO inhibitor: A weight-of-evidence consideration of its mode of action as a developmental toxicant in the rat and its relevance to humans". Toxicology. 472. Bibcode:2022Toxgy.47253160I. doi:10.1016/j.tox.2022.153160. PMID 35367320.