Specification Sheet
Product Name Leupeptin,
synthetic, ≥85% (HPLC)
Product Number L8511
Product Brand SIGMA
CAS Number 103476-89-7
Molecular Weight 475.59
 
TEST SPECIFICATION
APPEARANCE (COLOR) White to Off White
APPEARANCE (FORM) Powder
PURITY (HPLC AREA %) ≥ 85 %
REMARKS ON HPLC LEUPEPTIN IS REPORTED TO GIVE MULTIPLE PEAKS ON HPLC. REF: SAINO, T., ET AL., CHEM. PHARM. BULL., 30(7), 2319 (1982)
PEPTIDE CONTENT (ELEMENTAL ANALYSIS) ≥ 70 %
SOLUBILITY (COLOR) Colorless
SOLUBILITY (TURBIDITY) Clear to Slightly Hazy
SOLUBILITY (METHOD) 2 MG PLUS 1 ML H2O
WATER ≤ 10 %
RECOMMENDED RETEST PERIOD 36 MONTHS