Bifenthrin
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Bifenthrin or (2-methyl-1,1-biphenyl-3-y1)-methyl-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylate (CAS number 82657-04-3) is a pyrethroid insecticide that affects the nervous system of insects. Products containing bifenthrin include Talstar, Capture, and Bifenthrine.
The United States Environmental Protection Agency (EPA) has classified bifenthrin as a class C carcinogen (possible human carcinogen). It is highly toxic to fish, since it, like most pyrethroids, is also an ATPase inhibitor. Aquatic vertebrates are much more sensitive to ATPase inhibitors than terrestrial vertebrates due to their high dependence on ATP synthesis in the gills to maintain osmotic balance.