Used as a key metabolite in the breakdown of pyrethroid pesticides, making it a biomarker for monitoring human and environmental exposure to these insecticides. Detected in urine samples to assess pesticide exposure in agricultural and occupational settings. Also serves as an intermediate in the synthesis of pharmaceuticals and fine chemicals due to its aromatic structure and functional group reactivity. Its presence in environmental samples helps evaluate the persistence and degradation of pyrethroids in ecosystems.