108975
Leupeptin, Hemisulfate, Microbial
Leupeptin hemisulfate, CAS 103476-89-7, is a reversible inhibitor of trypsin-like proteases and cysteine proteases
Synonym(s):
Leupeptin, Hemisulfate, Microbial, Ac-LLR-CHO, ½H₂SO₄
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About This Item
Empirical Formula (Hill Notation):
C20H38N6O4 · 0.5H2SO4
CAS Number:
Molecular Weight:
475.59
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.77
Quality Level
Assay
≥90% (HPLC)
form
lyophilized solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
desiccated (hygroscopic)
color
white
solubility
water: 50 mg/mL
shipped in
ambient
storage temp.
−20°C
InChI
1S/C20H38N6O4/c1-12(2)9-16(24-14(5)28)19(30)26-17(10-13(3)4)18(29)25-15(11-27)7-6-8-23-20(21)22/h11-13,15-17H,6-10H2,1-5H3,(H,24,28)(H,25,29)(H,26,30)(H4,21,22,23)/p+1/t15-,16-,17-/m0/s1
InChI key
GDBQQVLCIARPGH-ULQDDVLXSA-O
General description
A reversible inhibitor of trypsin-like proteases and cysteine proteases. Also known to inhibit activation-induced programmed cell death and to restore defective immune response in HIV+ donors. Often used for the inhibition of endoproteinase Lys-C, kallikrein, papain, plasmin, thrombin, cathepsin B, and trypsin. Leupeptin does not inhibit chymotrypsin, elastase, renin, or pepsin. The recommended working range is 10-100 µM for most applications.
A reversible inhibitor of trypsin-like proteases and cysteine proteases. Also known to inhibit activation-induced programmed cell death and to restore defective immune responses of HIV+ donors. Also available as a 50 mM solution in H2O (Cat. No. 509281).
Biochem/physiol Actions
Cell permeable: no
Primary Target
trypsin- and cysteine-like proteases
trypsin- and cysteine-like proteases
Product does not compete with ATP.
Reversible: yes
Warning
Toxicity: Standard Handling (A)
Sequence
Ac-Leu-Leu-arginal, hemisulfate
Reconstitution
Following reconstitution, aliquot and freeze (-20°C) for long term storage or refrigerate (4°C) for short term storage. Aqueous stock solutions are stable for up to 1 week at 4°C or for up to 1 month at -20°C.
Other Notes
Montenez, J.P., et al. 1994. Toxicol. Lett. 73, 201.
Sarin, A., et al. 1994. J. Immunol.153, 862.
Sarin, A., et al. 1994. J. Immunol.153, 862.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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