51338-27-3

Colorless crystals. Decomposed by either strong acid or base. Used as a selective herbicide.

A bridged diphenyl.

Slightly soluble in water (3 mg/l).

Moderately toxic by ingestion and skin contact. Low toxicity by inhalation.

Diclofop-methyl is a chlorophenoxy; aryloxyphenoxypropionate acid selective postemergenceherbicide used to control wild oats and annual grassy weeds in grain and vegetable crops: alfalfa, carrots, celery, box, field and French beans, barley, wheat, brassicas, parsnips, peas, potatoes, rapeseed (canola), soy beans, oilseed rape, onions, sugar beets and lettuce. Some uses are classified RUP

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions) if breathing has stopped, and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Do not induce vomiting when formulations containing petroleum solvents are ingested. Otherwise, give large quantities of water and induce vomiting. Do not make an unconscious person vomit

UN3345 Phenoxyacetic acid derivative pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN3348 Phenoxyacetic acid derivative pesticide, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous material. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required. Note: Commercial product may also be a liquid in a flammable carrier.

Incompatible with oxidizers, chlorates nitrates, peroxides, sulfuric acid, caustics, ammonia, aliphatic amines, alkanolamines, isocyanates, alkylene oxides, and epichlorohydrin.

A white crystalline solid. Odorless. Can also be commercially available as a clear to dark brown liquid with a typical solvent odor

In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office

Herbicide.

ChEBI: Methyl 2-[4-(2,4-dichlorophenoxy)phenoxy]propanoate is a methyl ester resulting from the formal condensation of the carboxylic acid group of 2-[4-(2,4-dichlorophenoxy)phenoxy]propanoic acid with methanol. It is an aromatic ether, a dichlorobenzene, a diether and a methyl ester.

Herbicide: Some uses are classified as U.S. Restricted Use Pesticide (RUP). Diclofop-methyl is a selective post-emergence herbicide used to control wild oats and annual grassy weeds in grain and vegetable crops: alfalfa, carrots, celery, box, field and french beans, barley, wheat, brassicas, parsnips, peas, potatoes, rapeseed (canola), soy beans, oilseed rape, onions, sugar beets and lettuce.

DICHLORDIPHENPROP®; HOELON®; HOELON® 3EC; HOE-GRASS®; HOEGRASS®; HOE® 23408; ILOXAN®; ILLOXAN®; ONE SHOT®[C]

Biological. From the first-order biotic and abiotic rate constants of diclofop-methyl in estuarine water and sediment/water systems, the estimated biodegradation half-lives were 0.24–12.4 and 0.11–2.2 days, respectively (Walker et al., 1988).

Two resistant biotypes of black-grass (Peldon A1 and Lincs. E1 of Alopecurus myosuroides) exhibit moderately enhanced metabolism of 14C-diclofop methyl. Diclofop methyl is hydrolyzed to the corresponding propionic acid which undergoes further degradation to give polar metabolites. The amounts of the metabolites depend on the metabolism activity of the individual biotypes. In wheat, three isomeric hydroxylated metabolites are identified in a major metabolic pathway after acid hydrolysis of the glucoside conjugates.