Description General description A cell-permeable ortho-hydroxybenzylamino compound that displays anti-tumor properties. Acts as a potent, selective, and irreversible inhibitor of CDC25 phosphatase family (IC50 = 2.4, 3.9, 6.3, 5.4, and 4.6 µM for 25A, 25B2, 25B3, 25C, and 25C-cat, respectively). Displays ~20-fold greater selectivity for CDC25 phosphatases compared to CD45 tyrosine phosphatase. Shown to delay cell cycle progression in vitro (IC50 in the range of 7.2-32.6 µM), and reduces tumor growth in athymic mice xenografted with the human pancreatic cell MIA PaCa-2 (15 mg/kg, i.p. route). A cell-permeable ortho-hydroxybenzylamino compound that displays antitumor properties. Acts as a potent, selective and irreversible inhibitor of CDC25 phosphatase family (IC50 = 2.4, 3.9, 6.3, 5.4, and 4.6 µM for 25A, 25B2, 25B3, 25C, and 25C-cat, respectively). Displays ~20-fold greater selectivity for CDC25 phosphatases over CD45 tyrosine phosphatase. Shown to delay cell cycle progression in vitro (IC50 = ~7.2-32.6 µM), and reduces tumor growth in athymic mice xenografted with the human pancreatic cells MIA PaCa-2 (15 mg/kg, i.p. route). Packaging 5 mg in Plastic ampoule Biochem/physiol Actions Cell permeable: yes Primary Target CDC25A Product does not compete with ATP. Reversible: no Target IC50: 2.4, 3.9, 6.3, 5.4, and 4.6 µM for CDC25 phosphatase family 25A, 25B2, 25B3, 25C, and 25C-cat, respectively Packaging Packaged under inert gas Warning Toxicity: Standard Handling (A) Reconstitution Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C. Unstable in aqueous solution. Other Notes Brezak, M.C., et al. 2004. Cancer Res.64, 3320.