beta-cyfluthrin
beta-cyfluthrin
A diastereoisomeric mixture comprising the enantiomeric pair (1<i>R</i>)-<i>cis</i>-(α<i>S</i>)- and (1<i>S</i>)-<i>cis</i>-(α<i>R</i>)-cyfluthrin in ratio 1:2 with the enantiomeric pair (1<i>R</i>)-<i>trans</i>-(α<i>S</i>)- and (1<i>S</i>)-<i>trans</i>-(α<i>R</i>)-cyfluthrin.