Inhibitor of cathepsin B (Ki = 2-5nm). Displays selectivity over cathepsins H and L (Ki = 40-200um). Shown to reduce bone metastasis in a 4T1.2 breast cancer model.Sequence:C18H29N3O6Solubility:DMSO (~20mM), Ethanol (~20mM)Molecular Weight:~383.44Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.