racemate comprising (R)-α-cyano-3-phenoxybenzyl (1S,3S)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate;
racemo comprendente: (R)-α-ciano-3-fenossibenzil-(1S,3S)-3-(2,2-diclorovinil)-2,2-dimetilciclopropancarbossilato)-2,2-dimetilciclopropancarbossilato;