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  2. Pyrethrin - Wikipedia

    en.wikipedia.org/wiki/Pyrethrin

    Also, mammals are able to process pyrethrin quickly and have higher body temperatures which prevent pyrethrin from working effectively [22] Although pyrethrin is a potent insecticide, it also functions as an insect repellent at lower concentrations. Observations in food establishments demonstrate that flies are not immediately killed, but are ...

  3. Pyrethrum - Wikipedia

    en.wikipedia.org/wiki/Pyrethrum

    Pyrethrum continues to be used as a common name for plants formerly included in the genus Pyrethrum. Pyrethrum is also the name of a natural insecticide made from the dried flower heads of Chrysanthemum cinerariifolium and Chrysanthemum coccineum. The insecticidal compounds present in these species are pyrethrins.

  4. Persian powder - Wikipedia

    en.wikipedia.org/wiki/Persian_powder

    Pyrethroids are synthetic insecticides based on natural pyrethrum (), such as permethrin.. A common formulation of pyrethrin is in preparations containing the synthetic chemical piperonyl butoxide: this has the effect of enhancing the toxicity to insects and speeding the effects when compared with pyrethrins used alone.

  5. Pyrethroid - Wikipedia

    en.wikipedia.org/wiki/Pyrethroid

    Pyrethrum rapidly knocks down flying insects but has negligible persistence — which is good for the environment but gives poor efficacy when applied in the field. Pyrethroids are essentially chemically stabilized forms of natural pyrethrum and belong to IRAC MoA group 3 (they interfere with sodium transport in insect nerve cells). [29]

  6. Pyrethrin II - Wikipedia

    en.wikipedia.org/wiki/Pyrethrin_II

    Whereas pyrethrin I is a derivative of (+)-trans-chrysanthemic acid, in pyrethrin II one methyl group is oxidized to a carboxymethyl group, the resulting core being called pyrethric acid. Knowledge of their chemical structures opened the way for the production of synthetic analogues, which are called pyrethroids .

  7. Resmethrin - Wikipedia

    en.wikipedia.org/wiki/Resmethrin

    Pyrethrins and Pyrethroids Fact Sheet - National Pesticide Information Center; Resmethrin Pesticide Information Profile - Extension Toxicology Network; MSDS for Scourge Formula II; WHO/FAO DATA SHEETS ON PESTICIDES, No. 83, RESMETHRIN World Health Organization & Food and Agriculture Organization Archived 2011-06-09 at the Wayback Machine

  8. Allethrins - Wikipedia

    en.wikipedia.org/wiki/Allethrins

    Allethrin I (R = −CH 3) Allethrin II (R = −COOCH 3). The allethrins are a group of related synthetic compounds used in insecticides.They are classified as pyrethroids, i.e. synthetic versions of pyrethrin, a chemical with insecticidal properties found naturally in Chrysanthemum flowers.

  9. Pyrethrin I - Wikipedia

    en.wikipedia.org/wiki/Pyrethrin_I

    Pyrethrin I is one of the two pyrethrins, natural organic compounds with potent insecticidal activity. It is an ester of (+)- trans - chrysanthemic acid with ( S )-( Z )- pyrethrolone . Total synthesis

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