Agent Name

Acetochlor

CAS Number

34256-82-1

Formula

C14-H20-Cl-N-O2

Major Category

Pesticides

Synonyms

2-Chloro-2'-methyl-6-ethyl-N-ethoxymethylacetanilide; 2-Chloro-N-(ethoxymethyl)-6'-ethyl-o-acetotoluidide; 2-Chloro-N-(ethoxymethyl)-6'-ethylacet-o-toluidide (8CI); 2-Chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide; Acenit; Acetamide, 2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)- (9CI); Acetochlore; Acetochlore [ISO-French]; Azetochlor; Erunit; Harness; MG 02; MON 097; Nevirex; o-Acetotoluidide, 2-chloro-N-(ethoxymethyl)-6'-ethyl- (8CI); [ChemIDplus]

Category

Herbicides, Chloracetanilide

Description

Light amber to violet oily liquid; [HSDB] Light yellow liquid; [MSDSonline]

Sources/Uses

Used as selective pre-emergence herbicide for control of most annual grasses, certain annual broad-leaved weeds, and yellow nutsedge; [HSDB] Registered for use on field corn and popcorn; [EPA REDs]

Comments

A skin and respiratory tract irritant; May cause skin sensitization; [eChemPortal: ESIS] Caused mild skin and eye irritation to the eyes of rabbits; Other effects in high-dose animal studies include changes to the liver, convulsions, dyspnea, and methemoglobinemia; [RTECS] No significant adverse effects were observed in rats following 800 ppm oral dose over 90 days; [HSDB] No toxicity reported in workers manufacturing or handling Acetochlor; [Reference #2]

Reference Link

EPA Pesticide Chemical Search

Exposure Assessment
Vapor Pressure

2.8E-5 mm Hg

Lethal Concentration

LC50 (rat) = 3,990 mg/m3/4H

Reference Link

EFSA: Acetochlor - 2008

Adverse Effects
Skin Sensitizer

Yes

Neurotoxin

Other CNS Neurotoxin

Hepatotoxin

Hepatotoxin, Secondary

Methemoglobinemia

Methemoglobinemia, Secondary

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: