Alachlor

Alachlor

Chembox new
ImageFile = Alachlor.png ImageSize = 200px
IUPACName = 2-Chloro-"N"-(2,6-diethylphenyl)-"N"-(methoxymethyl)acetamide
OtherNames =
Section1 = Chembox Identifiers
CASNo = 15972-60-8
PubChem = 2078
SMILES = CCC1=C(C(=CC=C1)CC)N(COC)C(=O)CCl
InChI = 1/C14H20ClNO2/c1-4-11-7-6-8-12(5-2)14(11)16(10-18-3)13(17)9-15/h6-8H,4-5,9-10H2,1-3H3

Section2 = Chembox Properties
Formula = C14H20ClNO2
MolarMass = 269.767 g/mol
Appearance =
Density =
MeltingPt =
BoilingPt =
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Section3 = Chembox Hazards
MainHazards =
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Alachlor is an herbicide from the chloroacetanilide family. Its mode of action is elongase inhibition, and inhibition of geranylgeranyl pyrophosphate (GGPP) cyclisation enzymes, part of the gibberellin pathway.

Uses

It is marketed under the trade names Alanex, Bronco, Cannon, Crop Star, Intrro, Lariat, Lasso, Micro-Tech, and Partner. It mixes well with other herbicides, and is found in mixed formulations with atrazine, glyphosate, trifluralin, and imazaquin. It is used mainly to control annual grasses and broadleaf weeds in corn (maize), soybeans, and peanuts. [ [http://pmep.cce.cornell.edu/profiles/herb-growthreg/24-d-butylate/alachlor/herb-prof-alachlor.html Cornell Herbicide Profile] ] [ [http://extoxnet.orst.edu/pips/alachlor.htm Oregon State University Pesticide Inormation Profile] ]

It is most commonly available as microgranules containing 15% a.i., or emulsifiable concentrate containing 480g / litre of a.i. Homologuation in Europe requires a maximum dose of 2,400g per hectare of a.i., or 5 litres / hectare of emulsifiable concentrate or 17kg / ha of microgranules. The products are applied as either pre-drilling, soil incorporated, or pre-emergence. [ [http://e-phy.agriculture.gouv.fr/ e-phy ] ]

afety

The United States Environmental Protection Agency classifies the herbicide as toxicity class III - slightly toxic. [ [http://extoxnet.orst.edu/pips/alachlor.htm Extoxnet Pip - Alachlor ] ] The EPA has described the following effects when exposed to levels above the maximum contaminant level (MCL): slight skin and eye irritation; at lifetime exposure to levels above the MCL: potential damage to liver, kidney, spleen; lining of nose and eyelids; cancer. [ [http://www.epa.gov/safewater/contaminants/dw_contamfs/alachlor.html US EPA Consumer Factsheet] ] Since 2006, use of alachlor as a herbicide is banned in the European Union

ee also

*Acetochlor
*Metolachlor

References


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