Used primarily in pharmaceutical research as a key intermediate in the synthesis of selective estrogen receptor modulators (SERMs). It exhibits potential in the development of treatments for hormone-related conditions such as breast cancer and osteoporosis due to its ability to modulate estrogen receptor activity in specific tissues. Its structure allows for high receptor binding affinity and tissue selectivity, making it valuable in creating drugs with targeted effects and reduced side effects. Also investigated for use in central nervous system therapies due to its ability to cross the blood-brain barrier.