Coumaphos

• O-( 3-chloro- 4-methylcoumarin -7 -yl) O, O- diethylthiophosphat
• Thiophosphoric acid O-( 3-chloro -4-methyl -2-oxo -2H-1 -benzopyran- 7 -yl) O, O- diethyl

Brownish powder with a faint odor

Fixed

1.474 g · cm -3

90-93 ° C

> 200 ° C

1.7 hPa ( 20 ° C)

• Practically insoluble in water
• Soluble in aromatic solvents
• Slightly soluble in alcohols and ketones

Risk

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Coumaphos is a chemical compound selected from the group of the thiophosphoric acid ester, and organic chlorine compounds.

Production and representation

Coumaphos can be obtained by reaction of Diethylchlorthiophosphat with 3 -chloro-4 -methyl -7-hydroxy -coumarin.

Properties

Coumaphos is a solid which is practically insoluble in water. It is resistant to water and moderate heat, but hydrolyzed under alkaline conditions.

Use

Coumaphos is an insecticide which is used for controlling a variety of insects in animal production, including maggots, snails, worms, lice, scabies mites, Varroa mites, flies and ticks. It is effective against ectoparasites that live on animals such as sheep, goats, horses, pigs, poultry and bees. They are used both externally and internally. Coumaphos serves as a selective insecticide, while sparing other organisms it kills certain insects. It acts as a cholinesterase inhibitor and is metabolized in animals to Chlorferon.

In Switzerland and in Germany no pesticides are allowed to contain as the active ingredient coumaphos.

Trade names

Agridip, Asunthol, Meldane, Muscatox, Umbethion, Co -Ral, Asuntol, Bay 21, Baymix, Dilice, Resistox, Suntol, Negashunt, Perizin.