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CAS number 87674-68-8 YesY
PubChem 91744
ChemSpider 82842 YesY
KEGG C18499 YesY
RTECS number AB5444200
Jmol-3D images Image 1
Image 2
Molecular formula C12H18ClNO2S
Molar mass 275.79 g/mol
Appearance Tan to brown liquid
Density 1.141 g/cm3
R-phrases R22
Main hazards Xn (harmful)
Flash point 151 °C (304 °F; 424 K)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Dimethenamid is a widely used herbicide. In 2001, about 7 million pounds of dimethenamid were used in the United States.[4] Dimethenamid is registered for control of annual grasses, certain annual broadleaf weeds and sedges in field corn, seed corn, popcorn and soybeans. Supplemental labeling also allows use on sweet corn, grain sorghum, dry beans and peanuts. In registering dimethinamide (SAN 582H/Frontier), EPA concluded that the primary means of dissipation of dimethenamid applied to the soil surface is photolysis, whereas below the surface loss was due largely to microbial metabolism. The herbicide was found to undergo anaerobic microbial degradation under denitrifying, iron-reducing, sulfate-reducing, or methanogenic conditions.[5] In that study, more than half of the herbicide carbon (based on 14C-labeling) added was found to be incorporated irreversibly into soil-bound residue.


  1. ^ Dimethenamid at Sigma-Aldrich
  2. ^ Material Safety Data Sheet from BASF
  3. ^ Dimethenamid at AlanWood.net
  4. ^ 2000-2001 Pesticide Market Estimates, U.S. Environmental Protection Agency
  5. ^ Crawford, J.J.; G. K. Sims; F. W. Simmons; L. M. Wax; D. L. Freedman (2002). "Dissipation of the herbicide (14C) Dimethenamid under anaerobic aquatic conditions in flooded soil microcosms.". J. Agric. Food. Chem. 50 (6): 61483–1491.