Allethrins

Allethrin I (R = −CH3)
Allethrin II (R = −COOCH3)

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. They were first synthesized in the United States by Milton S. Schechter in 1949. Allethrin was the first pyrethroid.[1]

They are commonly used in ultra-low volume sprays for outdoor mosquito control, and in many household insecticides such as RAID, as well as mosquito coils.

  1. ^ Ujihara, Kazuya (25 July 2019). "The history of extensive structural modifications of pyrethroids". Journal of Pesticide Science. 44 (4): 215–224. doi:10.1584/jpestics.D19-102. PMC 6861428. PMID 31777441.