Esfenvalerate

(S)-Fenvalerate(S)-cyano-(3-phenoxy phenyl)-methyl-(S)-4-chloro-α-(1-methyl ethyl) benzene acetateChloro-α-(1-methylethyl)benzeneacetic acidcyano(3-phenoxyphenyl)methyl ester (CAS)(S-(R,R))-4-chloro-α-(1-methylethyl) benzeneacetic acidcyano-(3-phenoxyphenyl)methylester(S)-α-cyano-3-phenoxy benzyl (S)-2-(4-chloro-phenyl) isovalerateFenvalerate A-Alpha(S-(R*,R*))-Benzeneacetic acid, 4-chloro-α-(1-methylethyl)-cyano(3-phenoxyphenyl)methylesterCyano-3-phenoxybenzyl (S)-2-(4-chlorophenyl)isovalerateEsfenvalerate is a synthetic pyrethroid insecticide marketed under the brand Asana. It is the (S)-enantiomer of fenvalerate. Esfenvalerate is a synthetic pyrethroid insecticide marketed under the brand Asana. It is the (S)-enantiomer of fenvalerate. In the United States, a limit of .05 ppm of the chemical's residue is permissible in food.