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108975

Sigma-Aldrich

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
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.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

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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