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Chemical Identification
Common Name
Flucythrinate
中文通用名
氟氰戊菊酯
IUPAC
(RS)-α-cyano-3-phenoxybenzyl (S)-2-(4-difluoromethoxyphenyl)-3-methylbutyrate
CAS
cyano(3-phenoxyphenyl)methyl (αS)-4-(difluoromethoxy)-α-(1-methylethyl)benzeneacetate
CAS No.
70124-77-5
Molecular Formula
C26H23F2NO4
Molecular Structure
Category
Activity
Insecticide
CropUse
 apples, cabbage, field corn, head lettuce, and pears
Formulation
WG = Water dispersible granules
WP = Wettable powder
Premix
Flucythrinate+fenitrothion
Physical Properties
Molecular weight:451.4; Physical form:Dark amber, viscous liquid, with a faint ester-like odour ( tech.). Density:1.189 (22 °C); Vapour pressure:0.0012 mPa (25 °C); Henry constant:1.08 × 10-3 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 4.7 (25 °C); Solubility:In water 0.5 mg/l (21 °C). In acetone >820, xylene 1810, n-propanol >780, corn oil >560, cottonseed oil >300, soya bean oil >300, hexane 90 (all in g/l, 21 °C).; Stability:Rapidly hydrolysed in water under alkaline conditions, but more slowly under neutral or acidic conditions; DT50 (27 °C) c. 40 d ( pH 3), 52 d ( pH 5), 6.3 d ( pH 9).
Toxicology
Oral:Acute oral LD50 for male rats 81, female rats 67, female mice 76 mg/ kg. Percutaneous:Acute percutaneous LD50 (24 h) for rabbits >1000 mg/kg. Non-irritating to skin and eyes (rabbits), but undiluted formulations may be irritating. No skin sensitisation. Inhalation: LC50 (4 h) for rats 4.85 mg/l air (aerosol). Phytotoxicity:Non-phytotoxic when used as directed. In certain treated crops, e.g. cotton and fruit trees, the green colouration of the foliage is i
Environmental Profile
Ecotoxicology: 
Bees:Toxic to bees, but also has a repellent effect. LD50 (topical, as a dust) 0.078 μg/bee. Birds:Acute oral LD50 for mallard ducks >2510, bobwhite quail 2708 mg/kg. Dietary LC50 (8 d) for mallard ducks 4885, bobwhite quail 3443 mg/ kg diet.Daphnia: LC50 (48 h) 0.0083 mg/l.Fish: LC50 (96 h) for bluegill sunfish 0.71, channel catfish 0.51, rainbow trout 0.32, sheepshead minnow 1.6 μg/l. Low insecticidal dosages and immobility in soils should minimise hazards to fish. 

Environmental fate: 
Animals:In rats, following oral administration, 60-70% is eliminated within 24 hours, and >95% within 8 days, in the faeces and urine. In the faeces, the parent compound makes up most of the material excreted, but in the urine and in tissue, several metabolites aSoil:In soil, there is low mobility and no leaching, with a half-life of c. 2 months.
Transport Information
Signal Word:DANGER; Hazard Class:Ib(Highly hazardous)

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