3-(2,6-Difluorobenzoyl)-1-(4-chlorophenyl)urea; 1-(4-chlorophenyl)-3-(2,6-difluorobenzoyl)urea; difluron; Dimilin; DU 112307; Largon; Micromite; N-(((4-chlorophenyl)amino)carbonyl)-2,6-difluorobenzami

1-(4-chlorophenyl)-3-(2,6-difluorobenzoyl)urea

C₂₆H₁₅Cl₅F₂N₂O₄S

Form Off-white to yellow crystals.

Melting point 210-230℃, decomp.

Density 1.56.

Solubility In water 0.08 mg/l (pH 7, 25℃). In n-hexane 0.063, toluene 0.29, dichloromethane 1.8, methanol 1.1 (all in g/l, 20℃).

Oral Acute oral LD50 for rats and mice >4640 mg/kg.

Skin and eye Acute percutaneous LD50 for rabbits >2000, rats >10 000 mg/kg.

Not a skin irritant; slight eye irritant (rabbits).

Not a skin sensitiser (guinea-pigs). Inhalation LC50 for rats >2.88 mg/l.

For control of a wide range of leaf-eating insects in forestry, woody ornamentals and fruit. Controls certain major pests in cotton, soya beans, citrus, tea, vegetables and mushrooms. Also controls larvae of flies, mosquitoes, grasshoppers and migratory locusts. Used as an ectoparasiticide on sheep for control of lice, fleas and blowfly larvae

Description: White powder, free from visible extraneous matter;

Active Ingredient Content(w/w): ≥97%;

Loss on Drying(w/w): ≤0.5%;

Acidity (as H2SO4)(w/w): ≤0.5%;

DMF Insoluble Material(w/w): ≤0.5%