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Chemical Name:  (2,3,5,6-tetrafluoro-4-methylphenyl)methyl (1R,3R)-rel-3-[(1Z)-2-chloro-3,3,3-trifluoro-1-propenyl]-2,2-dimethylcyclopropanecarboxylate

Formula:   C17H14ClF7O2

Molecular Weight:  418.74

CAS No.: 79538-32-2

          Structural formula of tefluthrin
Appearance :  offwhite solid
Density: 1.23
Melting Point:  44-46°C.
Vapour Pressure:  80 mPa(20°C).
Stability:  insoluble in water, easy soluble in toluene, chloroform and methylene dichloride. Stable for 270 days at 15-25ºC, stable for 84 days at 54ºC. It will lose 27-30% in 31 days when the aqueous solution(pH 7 is exposed to the sunlight. Between pH5 and pH7,hydrolysis > 30 days,when the pH is 9,hydrolyze 7% in 30 days.
Tefluthrin is first pyrethrin that is used soil pestcides. It is potent against coleoptera,lepidoptura and Diptera, tefluthrin is used in granule,soil insufflation and seed treatment.It has favorable volatility.Its half-life is one month in field. It has long residral effect period.


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