Potent inhibitor of PTEN (phosphatase and tensin homolog) (IC50 = 35 nM). Displays selectivity for PTEN over cysteine-based phosphatases such as SopB, MTM, PTPβ and SAC (IC50 values are 588 nM, 4.03, 57.5 and >10 μM respectively). Increases PIP2 and PIP3 levels; also increases Akt translocation in NIH/3T3 fibroblasts. Blocks the immunosuppressant activity of IDO-activated Tregs. Promotes antitumor inflammatory response in combination with immunotherapy and enhances anticancer chemotherapy in tumor-bearing mice. Purity 98%. MW (observed): 361.16