Used primarily in cancer research, particularly for its potential in treating solid tumors and hematological malignancies. It functions as a histone deacetylase (HDAC) inhibitor, which helps reactivate silenced tumor suppressor genes. Often studied in combination with other therapies such as hormone therapy, immunotherapy, or chemotherapy to enhance anti-tumor effects. Shows promise in breast cancer, especially in combination with aromatase inhibitors. Also under investigation for use in lung cancer, melanoma, and leukemia due to its ability to modulate gene expression and promote cancer cell differentiation and apoptosis.