Determine the necessary mass, volume, or concentration for preparing a solution.
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10mM in DMSO for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Protected from light,Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
protease inhibitor ,E-64 is an effective ligand for affinity purification of cysteine proteases. When coupled to a thiolated affinity matrix, binding is no longer irreversible, but specificity is retained
E-64 is a cysteine protease inhibitor that was isolated from the mold Aspergillus japonicus TPR-64. E-64 is also known as N-[N-(L-3-trans-carboxyoxiran-2-carbonyl)-L-leucyl]-agmatine. E-64 effectively inhibits various cysteine proteases, in particular:
• cathepsin K
• cathepsin L
• cathepsin S
E-64 also acts against other enzymes, such as:
• calpain
• cathepsin B
• cathepsin H
• papain
application:
It is used as a broad spectrum cysteine proteinase and calpain activation inhibitor. Additionally, Prevotella intermediate studies report that E-64 blocks the breakdown of methaemoglobin and the oxidation of oxyhaemoglobin by InpA. E-64 has also been used to study excystation in Giardia lamblia. E-64 is an inhibitor of Calpain, cathepsin K and cathepsin S. E-64 is an effective ligand for affinity purification of cysteine proteases. When coupled to a thiolated affinity matrix, binding is no longer irreversible, but specificity is retained
| Sonrisas canónicas | CC(C)C[C@H](NC(=O)[C@@H]1O[C@H]1C(O)=O)C(=O)NCCCCNC(N)=N |
|---|---|
| IUPAC Name | (2S,3S)-3-[[(2S)-1-[4-(diaminomethylideneamino)butylamino]-4-methyl-1-oxopentan-2-yl]carbamoyl]oxirane-2-carboxylic acid |
| InChIKey | LTLYEAJONXGNFG-DCAQKATOSA-N |
| INCHI | 1S/C15H27N5O5/c1-8(2)7-9(20-13(22)10-11(25-10)14(23)24)12(21)18-5-3-4-6-19-15(16)17/h8-11H,3-7H2,1-2H3,(H,18,21)(H,20,22)(H,23,24)(H4,16,17,19)/t9-,10-,11-/m0/s1 |
| Isómeros SMILES | CC(C)C[C@@H](C(=O)NCCCCN=C(N)N)NC(=O)[C@@H]1[C@H](O1)C(=O)O |
| WGK Alemania | 3 |
| RTECS | RR0390000 |
| Peso molecular | 357.41 |
| Beilstein | 1405664 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Clase | Epoxides |
| Subclass | Oxirane carboxylic acids and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Oxirane carboxylic acids |
| Alternative Parents | Guanidines Propargyl-type 1,3-dipolar organic compounds Oxacyclic compounds Monocarboxylic acids and derivatives Dialkyl ethers Carboxylic acids Carboximidic acids Carboximidamides Organopnictogen compounds Organic oxides Imines Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aliphatic heteromonocyclic compounds |
| Substituents | Oxirane carboxylic acid - Guanidine - Carboximidic acid - Carboximidic acid derivative - Carboxylic acid derivative - Carboxylic acid - Dialkyl ether - Ether - Monocarboxylic acid or derivatives - Carboximidamide - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Oxacycle - Organonitrogen compound - Organooxygen compound - Organic oxygen compound - Carbonyl group - Organic nitrogen compound - Imine - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Aliphatic heteromonocyclic compound |
| Descripción | This compound belongs to the class of organic compounds known as oxirane carboxylic acids. These are compounds containing an oxirane ring bearing a carboxylic acid group. |
| External Descriptors | guanidines - epoxy monocarboxylic acid - dicarboxylic acid monoamide |
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Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Fecha | Articulo |
|---|---|---|---|
| Certificate of Analysis | Jul 01, 2026 | E425359 |
| Sensibilidad | Light sensitive;Moisture sensitive |
|---|---|
| Punto de fusión (°C) | >170°C |
| Peso molecular | 357.410 g/mol |
| XLogP3 | -0.900 |
| Hydrogen Bond Donor Count | 5 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 11 |
| Exact Mass | 357.201 Da |
| Monoisotopic Mass | 357.201 Da |
| Topological Polar Surface Area | 172.000 Ų |
| Heavy Atom Count | 25 |
| Formal Charge | 0 |
| Complexity | 518.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 3 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Limei Cai, Xiaoming Liu, Zhiqiang Tian, J.P. Michaud, Zhongjian Shen, Zhen Li, Songdou Zhang, Xiaoxia Liu. (2022) Safety of Bacillus thuringiensis Cry1Ah and Vip3Aa toxins for the predatory stink bug Arma custos (Hemiptera: Pentatomidae). SCIENCE OF THE TOTAL ENVIRONMENT, [PMID:35987246] [10.1016/j.scitotenv.2022.158120] |
| 2. Yunhua Zhang, Jinyun Ji, Xiao Zhao, Ruoheng Jin, Jianhong Li, Hu Wan. (2017) Expression, purification and enzymatic properties of a β-N-acetylhexosaminidase from brown planthopper, Nilaparvata lugens. JOURNAL OF ASIA-PACIFIC ENTOMOLOGY, [PMID:] [10.1016/j.aspen.2017.10.005] |
| 3. Jiandong Shen, Bijiang Zhong, Wenshui Xia, Yanshun Xu. (2024) Action of structural proteins in textural deterioration of grass carp (Ctenopharyngodon idellus) fillets during refrigerated storage. INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 59 (4): (2659-2666). [PMID:] [10.1111/ijfs.17010] |
| 4. Xia Gao, Meng Gui, Shengjun Chen, Xiao Hu, Juan You, Tao Yin, Yang Hu, Shanbai Xiong, Ru Liu. (2025) Insights into HIU enhancement of salt-reduced surimi gelation properties: Dual regulation of endogenous transglutaminase activation and protease inhibition. ULTRASONICS SONOCHEMISTRY, [PMID:40834706] [10.1016/j.ultsonch.2025.107516] |
| 5. Jiandong Shen, Wei Zhang, Qixing Jiang, Pei Gao, Yanshun Xu, Wenshui Xia. (2022) The role of cathepsin L on structural changes of collagen fibers involved in textural deterioration of chilled grass carp (Ctenopharyngodon idella) fillets. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 102 (13): (5858-5866). [PMID:35426126] [10.1002/jsfa.11935] |