BG-45产品是BG-45 is a potent HDAC class I inhibitor with selectivity for HDAC3 (IC₅₀ = 289 nM) over HDAC1, 2. BG45 does not inhibit HDAC6. BG-45 alone or in combination with bortezomib has been shown to dose-dependently inhibit tumor growth in a mouse model of multiple myeloma.