Potent, reversible and cell permeable proteasome inhibitor. Specifically inhibits the chymotrypsin-like activity of the proteasome. Calpain and cathepsin inhibitor. Apoptosis inducer in Rat-1 and PC12 cells via a p53-dependent pathway. Autophagy activator.Molecular Formula:C25H39N3O5Molecular Weight:461.6Solubility:Soluble in DMSOStorage and Stability:Stable for at least 1 year after receipt when stored at -20°C.