E 64d

Cat. No. 4545

E 64d C17H30N2O5 [88321-09-9]

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Chemical Name: (2S,3S)-3-[[[(1S)-3-Methyl-1-[[(3-methylbutyl)amino]carbonyl]butyl]amino]carbonyl]-2-oxiranecarboxylic acid ethyl ester

Biological Activity

Inhibitor of cathepsins B and L; also thought to inhibit calpain. Inhibits lysosomal proteases and interferes with autolysosomal digestion when used in combination with pepstatin A (Cat. No. 1190). Lysosome and cell permeable.

Technical Data

Soluble to 20 mM in DMSO
>98 %
Store at -20°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet


Wilcox and Mason (1992) Inhibition of cysteine proteinases in lysosomes and whole cells. Biochem.J. 285 495. PMID: 1637341.

Tanada et al (2005) Lysosomal turnover, but not a cellular level, of endogenous LC3 is a marker for autophagy. Autophagy 1 84. PMID: 16874052.

Sato et al (2007) Autophagy is activated in colorectal cancer cells and contributes to the tolerance to nutrient deprivation. Cancer Res. 67 9677. PMID: 17942897.

Kim et al (2008) Autophagy upregulation by inhibitors of caspase-3 and mTOR enhances radiotherapy in a mouse model of lung cancer. Autophagy 4 659. PMID: 18424912.

If you know of a relevant citation for this product please let us know.

Keywords: E 64d, supplier, lysosomal, proteases, inhibitors, cathepsins, autophagy, autolysosomal, digestion, E64d

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