Imazapyr

Last updated
Imazapyr
Imazapyr.png
Names
IUPAC name
(RS)-2-(4-Methyl-5-oxo-4-propan-2-yl-1H-imidazol-2-yl)pyridine-3-carboxylic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.118.758 OOjs UI icon edit-ltr-progressive.svg
KEGG
PubChem CID
UNII
  • InChI=1S/C13H15N3O3/c1-7(2)13(3)12(19)15-10(16-13)9-8(11(17)18)5-4-6-14-9/h4-7H,1-3H3,(H,17,18)(H,15,16,19) X mark.svgN
    Key: CLQMBPJKHLGMQK-UHFFFAOYSA-N X mark.svgN
  • InChI=1/C13H15N3O3/c1-7(2)13(3)12(19)15-10(16-13)9-8(11(17)18)5-4-6-14-9/h4-7H,1-3H3,(H,17,18)(H,15,16,19)
    Key: CLQMBPJKHLGMQK-UHFFFAOYAH
  • OC(C1=C(C(N2)=NC(C)(C(C)C)C2=O)N=CC=C1)=O
Properties
C13H15N3O3
Molar mass 261.281 g·mol−1
Density 1,34
Melting point 169-171
13.47 g/L
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Imazapyr is a non-selective herbicide used for the control of a broad range of weeds including terrestrial annual and perennial grasses and broadleaved herbs, woody species, and riparian and emergent aquatic species. [1] [2]

Imazapyr is an ingredient of the commercial product Ortho GroundClear. A related herbicide, imazapic is an ingredient in Roundup Extended Control. Both chemicals are non-selective, long-lasting, and effective in weed control. Water-soluble, depending on soil type and moisture, they can move into parts of the landscape where they were not sprayed. Some desirable landscape plants are especially sensitive to them and can be damaged.[ citation needed ]

Imazapyr's HRAC classification is Group B (global, Aus), Group 2 (numeric), as it inhibits acetohydroxyacid synthase. [3]

References

  1. ↑ Reregistration Eligibility Decision for Imazapyr, U.S. Environmental Protection Agency
  2. ↑ "Imazapyr Product Data Sheet" (PDF). TOKU-E. October 10, 2011. Archived from the original (PDF) on April 23, 2016.
  3. ↑ "Classification of Herbicides According to Site of Action" . Retrieved 19 July 2025.
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