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For further processing only. Others Leupeptin synthetic Leupeptin 3.2.7.1.27.1 Ac-Leu-Leu-argininal x ½ H2SO4, synthetic 103476-89-7 en Leupeptin as well as other protease inhibitors like pepstatin are useful for the protection of proteins during their isolation from tissues or membranes. Leupeptin can be removed from the reaction by dialysis. en Protease inhibitor of serine and cysteine proteases. en Leupeptin inhibits serine and thiol proteases such as trypsin, plasmin, proteinase K, kallikrein, papain, thrombin, and cathepsin A and B.Not affected are α-, β-, γ- and δ- chymotrypsin, pepsin, cathepsin D, elastase, renin, and thermolysin.Effective concentration 10-100 μM. en Formula: C20H38N6O4 × ½ H2SO4Molar Mass: 475.6 g/molAppearance: White powderLeupeptin (HPLC): 96.5 area %Performance test (Inhibition of Trypsin; Inhibition exists): correspondsStability: At +2°C to +8°C: within specification range for 12 months; stored dry. en