Used in the synthesis of pharmaceutical intermediates, particularly in the development of selective estrogen receptor modulators (SERMs). It serves as a key building block for drugs targeting hormone-related conditions such as osteoporosis and breast cancer. Its structure allows for functionalization that enhances binding affinity to estrogen receptors, making it valuable in medicinal chemistry for designing therapeutics with improved tissue selectivity and reduced side effects. Also employed in research settings to explore new bioactive molecules and optimize drug candidates.