HX 531 is primarily utilized in research settings to study its effects on nuclear receptors, particularly the retinoid X receptor (RXR). It acts as an antagonist, inhibiting RXR activity, which makes it a valuable tool for understanding the role of RXR in various biological processes. Researchers use HX 531 to explore its potential in modulating pathways related to metabolism, inflammation, and cell differentiation. Its application extends to preclinical studies aimed at investigating therapeutic strategies for diseases where RXR signaling is implicated, such as cancer, diabetes, and metabolic disorders. Additionally, HX 531 aids in elucidating the complex mechanisms of nuclear receptor interactions, contributing to the development of targeted drug therapies.