Description_x000D_ Application_x000D_ 2-Mercaptopurine (2-MP), a thiopurine and analog of the anti-cancer drug 6-mercaptopurine (6-MP), has been used to study the substrate and binding specificity and kinetics of xanthine oxidase-catalyzed hydroxylation and myeloperoxidase (MPO) reactions. 2-Mercaptopurine inhibited lipopolysacharide (LPS)-dependent nitric oxide (NO) production in B cells._x000D_ Packaging_x000D_ 100 mg in glass bottle_x000D_ 25 mg in glass insert