Used primarily in research settings as a selective inhibitor of histone deacetylase 6 (HDAC6), it helps in studying cellular processes such as protein degradation, cell motility, and acetylation-related signaling pathways. Its selectivity makes it valuable for exploring HDAC6-specific roles in cancer, neurodegenerative diseases, and immune disorders without broadly affecting other HDAC enzymes. Commonly applied in in vitro models to assess therapeutic potential and mechanism of action in disease contexts.