KD 5170

KD 5170 is a broad spectrum, classes I and II HDAC (histone deacetylase) inhibitor. The IC₅₀ for inhibition of HDAC1, HDAC2, HDAC3, HDAC4 is 0.02 μM, 2 μM, 0.075 μM, 0.026 μM respectively, in vitro. KD5170 induced apoptosis in a broad range of human tumor-derived cell lines. It inhibited xenograft tumors in nude mice.