Biopermethrin is a broad-spectrum insecticide. Very little information has been published regarding its environmental fate, ecotoxicology or impact on human health.
(+)-trans-Permethrin ((+)-trans-NRDC-143) is a pyrethroid which is synthetic derivative of the natural toxins pyrethrins contained in the flowers of Chrysanthemum species[1].
Biopermethrin is produced commercially by synthesising the 1R trans isomer of permethrin, a broad spectrum pyrethroid insecticide. Its manufacture follows the same industrial process used for other synthetic pyrethroids: chemical esterification of 3 phenoxybenzyl alcohol with the (1R,3S) 3 (2,2 dichlorovinyl) 2,2 dimethylcyclopropanecarboxylic acid to yield the purified stereoisomer.
Broad-spectrum with contact and stomach action. Acts on the nervous system of insects.
A poison by intravenous route. Moderately toxic by ingestion. Questionable carcinogen.
[1] Weille JR, et, al. Sodium depletion in the periaxonal space of the squid axon treated with pyrethroids. Brain Res. 1986 Oct 29;386(1-2):169-74. DOI:
10.1016/0006-8993(86)90153-8
