English name : Leupeptin; Acetyl-Leu-Leu-Arg-al; N-Acetyl-L-leucyl-L-leucyl-L-argininal hemisulfate salt; Leupeptin hemisulfate salt
Other names : leupeptin; leupeptin
C20H38N6O4 • 1 / 2H2SO4 • H2O = 493.62
Level : Ultra pure grade
Content : ≥80%
Specific Rotation (2%, Water): -79 ~ -85 °
Characters : white or almost white powder by the Rose Streptomyces Streptomyces roseus MB-26-AI produced trypsin inhibitory agents, it is one of many protease inhibitors leupeptin pure melting point 110 ~ 140 ℃, soluble in water. , methanol, ethanol, butanol, dimethyl sulfoxide, insoluble in ethyl acetate, acetone, chloroform, hexane, etc., to Rydon-Smith, Sakaguchi was attached to wow the reaction, ninhydrin, ferric chloride, anthrone Morley 's positive reaction .
Use: Biochemical studies inhibits trypsin, papain, an enzyme tissue egg B, blood plasmin, kallikrein enzyme, its inhibition was competitive with substrate inhibition can inhibit a variety of serine and cysteine . acid protease.
Save : -20 ℃