Inhibits Class I and II histone deacetylases (HDACs); induces accumulation of acetylated histones H2A, H2B, H3 and H4 in transformed cultured cells. Suppresses cell growth in a range of cancer cell lines; induces apoptosis in cutaneous T cell lymphoma cells in vitro. Activates autophagy. Purity 98%. MW (observed): 264.32