6-Ketoestradiol is primarily utilized in research settings to study its effects on estrogen receptors and its potential role in hormone-related processes. It is often investigated for its interactions with estrogen metabolism and its impact on various physiological pathways, including those related to reproductive health. Researchers explore its potential applications in understanding hormone-dependent conditions and developing targeted therapies. Additionally, it may be used in biochemical assays to evaluate its binding affinity and activity in comparison to other estrogenic compounds. Its role in modulating cellular responses makes it a valuable compound in endocrinology and cancer research, particularly in studies focusing on estrogen receptor-positive cancers.