Date published: 2025-10-16

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Mefenpyr-diethyl (CAS 135590-91-9)

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CAS Number:
135590-91-9
Molecular Weight:
373.23
Molecular Formula:
C16H18Cl2N2O4
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Mefenpyr-diethyl is a synthetic herbicide widely employed to control weeds in agricultural crops, turf grass, and non-crop areas. As a member of the pyridine carboxylic acid family, it serves as an effective pre- and post-emergent herbicide. Mefenpyr-diethyl targets a broad spectrum of weeds, encompassing annual grasses, broadleaf weeds, and sedges. Its mechanism of action involves inhibiting the plant′s photosynthesis, leading to its eventual demise.


Mefenpyr-diethyl (CAS 135590-91-9) References

  1. Herbicide-resistance to mesosulfuron + iodosulfuron in Alopecurus myosuroides (black-grass).  |  Hull, R., et al. 2008. Commun Agric Appl Biol Sci. 73: 903-12. PMID: 19226842
  2. Safener responsiveness and multiple herbicide resistance in the weed black-grass (Alopecurus myosuroides).  |  Cummins, I., et al. 2009. Plant Biotechnol J. 7: 807-20. PMID: 19754839
  3. Direct chiral liquid chromatography determination of aryloxyphenoxypropionic herbicides in soil: deconvolution tools for peak processing.  |  Guillén-Casla, V., et al. 2011. Anal Bioanal Chem. 400: 3547-60. PMID: 21487707
  4. Safeners recruit multiple signalling pathways for the orchestrated induction of the cellular xenobiotic detoxification machinery in Arabidopsis.  |  Behringer, C., et al. 2011. Plant Cell Environ. 34: 1970-85. PMID: 21726238
  5. Protective responses induced by herbicide safeners in wheat.  |  Taylor, VL., et al. 2013. Environ Exp Bot. 88: 93-99. PMID: 23564986
  6. The role of cytochrome P450 monooxygenase in the different responses to fenoxaprop-P-ethyl in annual bluegrass (Poa annua L.) and short awned foxtail (Alopecurus aequalis Sobol.).  |  Wang, H., et al. 2013. Pestic Biochem Physiol. 107: 334-42. PMID: 24267695
  7. Effect of three safeners on sulfur assimilation and iron deficiency response in barley (Hordeum vulgare) plants.  |  Bartucca, ML., et al. 2017. Pest Manag Sci. 73: 240-245. PMID: 27061021
  8. Herbicide Safeners Decrease Sensitivity to Herbicides Inhibiting Acetolactate-Synthase and Likely Activate Non-Target-Site-Based Resistance Pathways in the Major Grass Weed Lolium sp. (Rye-Grass).  |  Duhoux, A., et al. 2017. Front Plant Sci. 8: 1310. PMID: 28848566
  9. Iodine-Catalyzed Regioselective Oxidative Cyclization of Aldehyde Hydrazones with Electron-Deficient Olefins for the Synthesis of Mefenpyr-Diethyl.  |  Zhu, JN., et al. 2019. J Org Chem. 84: 11032-11041. PMID: 31333030
  10. Stimulation action of mefenpyr-diethyl on soybean, wheat, and signal grass plants.  |  Bianchi, L., et al. 2021. J Environ Sci Health B. 56: 163-167. PMID: 33284719
  11. Fragmenlt Recombination Design, Synthesis, and Safener Activity of Novel Ester-Substituted Pyrazole Derivatives.  |  Jia, L., et al. 2021. J Agric Food Chem. 69: 8366-8379. PMID: 34310139
  12. Seed dressing with mefenpyr-diethyl as a safener for mesosulfuron-methyl application in wheat: The evaluation and mechanisms.  |  Yuan, L., et al. 2021. PLoS One. 16: e0256884. PMID: 34460856
  13. Electrochemical Synthesis of Pyrazolines and Pyrazoles via [3+2] Dipolar Cycloaddition.  |  Linden, M., et al. 2023. Angew Chem Int Ed Engl. 62: e202214820. PMID: 36478106

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Mefenpyr-diethyl, 100 mg

sc-228447
100 mg
$80.00