Dichlofluanid

Dichlofluanid

苯氟磺胺

N-dichlorofluoromethylthio-N′,N′-dimethyl-N-phenylsulfamide

1,1-dichloro-N-[(dimethylamino)sulfonyl]-1-fluoro-N-phenylmethanesulfenamide

1085-98-9

C₉H₁₁Cl₂FN₂O₂S₂

Acaricides / Miticides > Phenylsulfamide acaricides
Fungicides > Amide fungicides

Fungicide

Permethrin+dichlofluanid+tebuconazole
Dust, wettable powder, water dispersible granule. Premix Parters: amitrole diuron; 2,4-D; 2,4-D dicamba; 2,4-D mecoprop; 2,4-D mecoprop-P; dicamba ioxynil; ioxynil; ioxynil MCPA; MCPA mecoprop.

Molecular weight:333.2; Physical form:Colourless, odourless, crystalline powder. Melting point:106 °C; Vapour pressure:0.014 mPa (20 °C); Henry constant:3.6×10-3 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 3.7 (21 °C); Solubility:In water 1.3 mg/l (20 °C). In dichloromethane >200, toluene 145, isopropanol 10.8, hexane 2.6 (all in g/l, 20 °C).; Stability:Decomposed by alkaline media; DT50 (22 °C) >15 d ( pH 4), >18 h ( pH 7), <10 min ( pH 9), and by polysulfides. Sensitive to light. Moderately soluble in organic solvents.

Oral:Acute oral LD₅₀ for rats >5000 mg/kg. Percutaneous:Acute percutaneous LD₅₀ for rats >5000 mg/kg. Slight skin irritant; moderate eye irritant (rabbits). Skin sensitiser. Inhalation: LC₅₀ (4 h) for rats c. 1.2 mg/l air (dust), >0.3 mg/l (aerosol). Phytotoxicity:Some stone fruits and ornamentals may suffer slight injury. ADI:0.025 mg/kg b.w

Ecotoxicology: 
Algae: E_rC₅₀ for Scenedesmus subspicatus 16 ml/l.Bees:Not toxic to bees.Birds:Acute oral LD₅₀ for Japanese quail >5000 mg/kg. Daphnia: LC₅₀ (48 h) >1.8 mg/l (90% pre-mix).Fish: LC₅₀ (96 h) for rainbow trout 0.01, golden orfe 0.12, bluegill sunfish 0.03 mg/l.Worms: LC₅₀ for Eisenia foetida >890 mg/kg dry soil. 
Environmental fate: 
Animals:In rats, following oral administration, dichlofluanid is rapidly absorbed and excreted, mainly via the urine. There is no accumulation in organs and tissues. Dichlofluanid is metabolised to dimethylsulfanilide, which is further hydroxylated and/or demethySoil:Due to its instability in soil, dichlofluanid is not leached into deeper soil layers. The main metabolite (dimethylsulfanilide) is further degraded and, according to parent and aged leaching studies, is unlikely to leach into deeper soil layers.Plant:In plants, dichlofluanid is metabolised to dimethylsulfanilide, which is further demethylated and/or hydroxylated and conjugated.
WATER SOLUBILITY: 1.3 mg/l at 20° C.

Signal Word:CAUTION; Hazard Class:III (Slightly hazardous)