Date published: 2026-5-5

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Clomazone (CAS 81777-89-1)

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CAS Number:
81777-89-1
Molecular Weight:
239.70
Molecular Formula:
C12H14ClNO2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Clomazone is a selective herbicide that is widely used in agriculture to control weeds in various crops. It belongs to the chemical class of triketone herbicides and is primarily effective against grasses and broadleaf weeds. The specific arrangement and bonding of atoms in Clomazone enable it to inhibit certain enzymes involved in the biosynthesis of chlorophyll, which is essential for plant growth and photosynthesis. This selective action makes it an effective herbicide against a range of grasses and broadleaf weeds while minimizing harm to desirable crops when used properly.


Clomazone (CAS 81777-89-1) References

  1. Herbicide clomazone does not inhibit in vitro geranylgeranyl synthesis from mevalonate.  |  Weimer, MR., et al. 1992. Plant Physiol. 98: 427-32. PMID: 16668657
  2. The behavior of clomazone in the soil environment.  |  Gunasekara, AS., et al. 2009. Pest Manag Sci. 65: 711-6. PMID: 19319928
  3. Bioaccumulation and Elimination of the Herbicide Clomazone in the Earthworms Eisenia fetida.  |  Cao, J., et al. 2015. Bull Environ Contam Toxicol. 95: 606-10. PMID: 26370279
  4. Toxicity of clomazone and its formulations to zebrafish embryos (Danio rerio).  |  Stevanovic, M., et al. 2017. Aquat Toxicol. 188: 54-63. PMID: 28458150
  5. Clomazone influence soil microbial community and soil nitrogen cycling.  |  Du, P., et al. 2018. Sci Total Environ. 644: 475-485. PMID: 29990898
  6. Use of Pistia stratiotes for phytoremediation of water resources contaminated by clomazone.  |  Escoto, DF., et al. 2019. Chemosphere. 227: 299-304. PMID: 30999171
  7. How the environmental fate of clomazone in rice fields is influenced by amendment with olive-mill waste under different regimes of irrigation and tillage.  |  Fernández, D., et al. 2020. Pest Manag Sci. 76: 1795-1803. PMID: 31794144
  8. Phytoremediation by Eremanthus crotonoides and Inga striata decay atrazine and clomazone residues in the soil.  |  Aguiar, LM., et al. 2020. Int J Phytoremediation. 22: 827-833. PMID: 31948264
  9. The difference in dissipation of clomazone and metazachlor in soil under field and laboratory conditions and their uptake by plants.  |  Szpyrka, E., et al. 2020. Sci Rep. 10: 3747. PMID: 32111959
  10. Simultaneous Analysis and Dietary Exposure Risk Assessment of Fomesafen, Clomazone, Clethodim and Its Two Metabolites in Soybean Ecosystem.  |  Pang, K. and Hu, J. 2020. Int J Environ Res Public Health. 17: PMID: 32191999
  11. Morphoanatomical injuries in Pistia stratiotes L. (Araceae) as a result of exposure to clomazone in water.  |  Ribeiro, VHV., et al. 2020. An Acad Bras Cienc. 92 Suppl 1: e20180519. PMID: 32348414
  12. Investigation of clomazone-tolerance mechanism in a long-grain cultivar of rice.  |  Guo, F., et al. 2021. Pest Manag Sci. 77: 2454-2461. PMID: 33432689
  13. Effects of the technical ingredient clomazone and its two formulated products on aquatic macrophytes.  |  Stevanović, M., et al. 2021. Environ Pollut. 277: 116753. PMID: 33640824
  14. Clomazone improves the interactions between soil microbes and affects C and N cycling functions.  |  Rong, L., et al. 2021. Sci Total Environ. 770: 144730. PMID: 33736380
  15. Negative cross-resistance to clomazone in imazethapyr-resistant Echinochloa crus-galli caused by increased metabolization.  |  Cutti, L., et al. 2021. Pestic Biochem Physiol. 178: 104918. PMID: 34446194

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Clomazone, 100 mg

sc-234404
100 mg
$119.00