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Exposure to pyrethrum, the crude form of pyrethrin, [31] causes harmful health effects for mammals. Pyrethrum also has an allergenic effect that commercial pyrethroids don't have. [ 31 ] In mammals, toxic exposure to pyrethrum can lead to tongue and lip numbness, drooling , lethargy , muscle tremors , respiratory failure , vomiting , diarrhea ...
People can be exposed to pyrethrum as a mixture of cinerin, jasmolin, and pyrethrin in the workplace by breathing it in, getting it in the eyes or on the skin, or swallowing it. The Occupational Safety and Health Administration (OSHA) has set the legal limit ( Permissible exposure limit ) for pyrethrum exposure in the workplace as 5 mg/m 3 over ...
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).
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]
It is commonly used as an insecticide, and affects the insect's nervous system. It is found in many household insecticide products. [1] Tetramethrin has an expected half-life of 12.5–14 days in soil and 13–25 days in water. [2]
The flowers are pulverized and the active components, called pyrethrins, contained in the seed cases, are extracted and sold in the form of an oleoresin. This is applied as a suspension in water or oil, or as a powder. Pyrethrins attack the nervous systems of all insects, and inhibit female mosquitoes from biting.
Transfluthrin is a fast-acting pyrethroid insecticide with low persistency. It has the molecular formula C 15 H 12 Cl 2 F 4 O 2.. Transfluthrin can be used in the indoor environment against flies, mosquitoes, moths and cockroaches.
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.