κ-bifenthrin
A carboxylic ester obtained by formal condensation of the carboxy group of (1 R ,3 R )-3-[(1 Z )-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropanecarboxylic acid with the hydroxy group of [(2-methyl-1,1'-biphenyl)-3-yl]methanol.