Trans-chrysanthemyl alcohol is primarily utilized in the synthesis of pyrethroids, a class of synthetic insecticides. These compounds are widely used in agricultural and household pest control due to their effectiveness against a broad range of insects and relatively low toxicity to mammals. The alcohol serves as a key intermediate in the production of these insecticides, contributing to their stability and potency. Additionally, it finds application in the fragrance industry, where it is used to create floral and herbal scents for perfumes and cosmetic products. Its role in these industries highlights its importance in both pest management and the creation of aromatic formulations.