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Cyhalothrin (ISO common name [3]) is an organic compound that, in specific isomeric forms, is used as a pesticide. [4] It is a pyrethroid, a class of synthetic insecticides that mimic the structure and properties of the naturally occurring insecticide pyrethrin which is present in the flowers of Chrysanthemum cinerariifolium.
Cyfluthrin is a pyrethroid insecticide and common household pesticide. It is a complex organic compound and the commercial product is sold as a mixture of isomers.Like most pyrethroids (MoA 3a), [1] it is highly toxic to fish and invertebrates, but it is far less toxic to humans. [2]
Chemical structure of Allethrin isomers Chemical structure of Permethrin isomers. A pyrethroid is an organic compound similar to the natural pyrethrins, which are produced by the flowers of pyrethrums (Chrysanthemum cinerariaefolium and C. coccineum). Pyrethroids are used as commercial and household insecticides. [1]
Chemical structure of some pyrethrins: pyrethrin I (R=CH 3), pyrethrin II (R=CO 2 CH 3). The pyrethrins are a class of organic compounds normally derived from Chrysanthemum cinerariifolium that have potent insecticidal activity by targeting the nervous systems of insects.
For example, a 2007 study reported that resistant mosquitoes avoided treated huts. The researchers argued that DDT was the best pesticide for use in IRS (even though it did not afford the most protection from mosquitoes out of the three test chemicals) because the other pesticides worked primarily by killing or irritating mosquitoes ...
Thiamethoxam is the ISO common name [3] for a mixture of cis-trans isomers used as a systemic insecticide of the neonicotinoid class. It has a broad spectrum of activity against many types of insects and can be used as a seed dressing.
In one study of a patient who died of profenofos poisoning, the major metabolites of profenofos were identified as des-S-propylated profenofos, two isomers of despropylated propenofos, and desethylated propenofos. [8] A downstream, nontoxic metabolite, 4-bromo-2-chlorophenol, has been proposed as biomarker for exposure. [9]
Dicofol is an insecticide, an organochlorine that is chemically related to DDT.Dicofol is a miticide that is very effective against spider mite.Its production and use is banned internationally under the Stockholm Convention.