Aloxistatin (E-64d)

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MedKoo CAT#: 319511

CAS#: 88321-09-9

Description: Aloxistatin (E-64d), is a selective cysteine protease inhibitor or calpain and autophagy inhibitor. E-64d prevents in vitro cerulein- induced trypsinogen activation. E-64d can enter the intact cell and inhibit calpain. E-64d has been shown safe for the treatment of Alzheimer's disease in human. E-64d is potentially useful in the treatment of developmental seizure-induced brain damage both by regulating abnormal zinc signal transduction and through the modulation of altered lipid metabolism via ApoE/clusterin pathway in hippocampus.

Chemical Structure

Aloxistatin (E-64d)
CAS# 88321-09-9

Theoretical Analysis

MedKoo Cat#: 319511
Name: Aloxistatin (E-64d)
CAS#: 88321-09-9
Chemical Formula: C17H30N2O5
Exact Mass: 342.21547
Molecular Weight: 342.436
Elemental Analysis: C, 59.63; H, 8.83; N, 8.18; O, 23.36

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10.0mg USD 150.0 Same Day
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1.0g USD 2650.0 Same Day
2.0g USD 4650.0 Same Day
5.0g USD 7650.0 2 Weeks
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Synonym: E-64d; E 64d; E64d; E64-d; E64-d; E64 d; ethyl ester Loxistatin; NSC 694281; NSC694281; NSC-694281; EST; EP-453; EP453; EP 453; Aloxistatin

IUPAC/Chemical Name: ethyl (2S,3S)-3-(((S)-1-(isopentylamino)-4-methyl-1-oxopentan-2-yl)carbamoyl)oxirane-2-carboxylate


InChi Code: InChI=1S/C17H30N2O5/c1-6-23-17(22)14-13(24-14)16(21)19-12(9-11(4)5)15(20)18-8-7-10(2)3/h10-14H,6-9H2,1-5H3,(H,18,20)(H,19,21)/t12-,13-,14-/m0/s1

SMILES Code: CCOC([C@@H]1[C@@H](C(N[C@H](C(NCCC(C)C)=O)CC(C)C)=O)O1)=O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 342.436 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Ni H, Ren SY, Zhang LL, Sun Q, Tian T, Feng X. Expression profiles of hippocampal regenerative sprouting-related genes and their regulation by E-64d in a developmental rat model of penicillin-induced recurrent epilepticus. Toxicol Lett. 2013 Feb 27;217(2):162-9. doi: 10.1016/j.toxlet.2012.12.010. Epub 2012 Dec 21. PubMed PMID: 23266720.

2: Oh-ye Y, Inoue Y, Moriyasu Y. Detecting autophagy in Arabidopsis roots by membrane-permeable cysteine protease inhibitor E-64d and endocytosis tracer FM4-64. Plant Signal Behav. 2011 Dec;6(12):1946-9. PubMed PMID: 22105025; PubMed Central PMCID: PMC3337184.

3: Chen Z, Yao K, Xu W, Wu R. [Inhibition of calpain expression by E-64d in the rat retina subjected to ischemia/reperfusion injury]. Mol Biol (Mosk). 2008 Mar-Apr;42(2):258-64. Russian. PubMed PMID: 18610834.

4: Otani T. Cysteine protease inhibitor, E-64d, prevents in vitro cerulein- induced trypsinogen activation. Gastroenterology. 1998 Sep;115(3):802. PubMed PMID: 9742009.

5: McGowan EB, Becker E, Detwiler TC. Inhibition of calpain in intact platelets by the thiol protease inhibitor E-64d. Biochem Biophys Res Commun. 1989 Jan 31;158(2):432-5. PubMed PMID: 2537073.