l  General Information  | 
Product Name  | Leupeptin  Hemisulfate  | 
General description  | Leupeptin Hemisulfate is a reversible inhibitor of serine and cysteine proteases. It inhibits cathepsin B (Ki = 6 nM), calpain (Ki = 10 nM), trypsin (Ki = 35 nM), plasmin (Ki = 3.4 μM), and kallikrein (Ki = 19 μM), and has no effect against chymotrypsin, elastase, renin, or pepsin.  | 
Synonym  | (2S)-2-acetamido-N-[(2S)-1-[[(2S)-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]-4-methylpentanamide; sulfuric acid  | 
Purity  | ≥97.0%(HPLC)  | CAS Number  | 103476-89-7  | 
Formula  | C20H38N6O4R  | Molecular Weight  | 475.59  | 
Suitability  | BioReagent, suitable for cell culture, etc.  | 
l  Physical and Chemical Information  | 
Appearance  | Solid  | 
Solubility(25°C)  | DMSO  | ≥50mg/ml  | 
Ethanol  | ≥50mg/ml  | 
Water  | ≥50mg/ml  | 
l  Biological Information  | 
Biochem/Physiol
  Actions  | Leupeptin hemisulfate is a peptide sulfate salt obtained by combining leupeptin with 0.5 molar equivalents of sulfuric acid. It has a role as a calpain inhibitor, a cathepsin B inhibitor, an EC 3.4.21.4 (trypsin) inhibitor and a serine protease inhibitor  | 
l  Storage  | 
Storage temp.  | -20°C  | 
l  Precautions and Disclaimer  | 
This product is for R&D use only, not for drug, household, or other uses.  | 
l  References  | 
1.    http://www.drugbank.ca 2.    https://ncit.nci.nih.gov 3.    https://www.ncbi.nlm.nih.gov  |