Allethrins

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Allethrins

allethrolone esters of chrysanthemum-monocarboxylic acids and synthetic analogs of pyrethrins, which are pyrethrolone esters of the same acids; viscous liquids, insoluble in water, that can be absorbed by lungs, skin, and mucous membranes and may cause liver and kidney injury, with lung congestion; used as an insecticide.