Selective inhibitor of ubiquitin-specific protease (USP) 7 (IC50 = 4.2um). Displays little-to-no inhibition of other USP variants or proteases such as caspase, cathepsins and serine proteases; exhibits some activity at USP47. Induces elevated p53 and apoptosis in cancer cell lines; displays antiangiogenic activity in vivo.Sequence:C12H7Cl2NO3S2Solubility:DMSO (~10mM)Molecular Weight:~348.22Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile buffer or ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months 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.