Flucythrinate

• ( RS)- α -cyano -3- phenoxybenzyl (S) -2 - (4- difluormethoxyphenyl )-3- methylbutyrate (IUPAC)
• α - cyano-3- phenoxybenzyl - α - 4 -difluoromethoxy isopropylphenylacetat

Colorless liquid

Liquid

1.189 g · cm -3 ( 22 ° C)

108 ° C at 0.47 hPa

• Insoluble in water
• Soluble in acetone, methanol, n-heptane and ethyl acetate

1.541 (25 ° C)

Risk

• 67 mg · kg -1 ( LD50, rat, oral)
• > 1000 mg · kg -1 ( LD50, Rabbit, transdermal)

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Flucythrinate is a chemical compound from the group of pyrethroids and an analogue of fenvalerate.

Production and representation

Flucythrinate can be obtained by a multi-stage reaction of p- cresol with chlorodifluoromethane, bromine, sodium cyanide, 2- chloropropane, sodium hydroxide, potassium hydroxide, and thionyl chloride.

Properties

Flucythrinate is a colorless liquid. The technical product is a brown liquid with a faint odor. The compound is stable, but rapidly hydrolyze under alkaline conditions.

Use

Flucythrinate is used as an insecticide and acaricide. The effect is due to the influence of the sodium channels. It was 1984-1992 approved in the GDR.

The European Commission decided in 2002 not to include flucythrinate in the list of permitted pesticide active substances in Annex I to Directive 91/414/EEC.

In Germany, Austria and Switzerland, no plant protection products containing this active ingredient are allowed.