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CALPEPTIN

CAS No.
117591-20-5
Chemical Name:
CALPEPTIN
Synonyms
CS-1747;CALPEPTIN;Z-LEU-NLE-OH;Z-LEU-NLE-CHO;Calpeptin,95%;Z-LEU-NORLEUCINAL;Calpeptin, 10 mM in DMSO;N-CBZ-L-LEUCYL-NORLEUCINAL;Calpain Inhibitor:Calpeptin;BENZYLOXYCARBONYLLEUCYL-NORLEUCINAL
CBNumber:
CB4713515
Molecular Formula:
C20H30N2O4
Molecular Weight:
362.46
MDL Number:
MFCD00155623
MOL File:
117591-20-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-27 17:00:41
Product description Number Pack Size Price
Calpeptin - CAS 117591-20-5 - Calbiochem A cell-permeable calpain inhibitor (ID?? = 52 nM for calpain-1; ID?? = 34 nM for calpain-2; ID?? = 138 nM for papain). 03-34-0051 5mg $166
Calpeptin - CAS 117591-20-5 - Calbiochem A cell-permeable calpain inhibitor (ID?? = 52 nM for calpain-1; ID?? = 34 nM for calpain-2; ID?? = 138 nM for papain). 03-34-0051 25mg $411
Calpeptin - CAS 117591-20-5 - Calbiochem A cell-permeable calpain inhibitor (ID?? = 52 nM for calpain-1; ID?? = 34 nM for calpain-2; ID?? = 138 nM for papain). 03-34-0051 100mg $1180
Calpeptin ≥90% 14593 5mg $90
Calpeptin ≥90% 14593 10mg $124
More product size

CALPEPTIN Properties

Melting point 60-75 °C
Boiling point 494.07°C (rough estimate)
Density 1.1667 (rough estimate)
refractive index 1.6800 (estimate)
storage temp. -20°C
solubility Soluble in DMSO at 15mg/ml
form White to off-white solid
pka 11.14±0.46(Predicted)
color white to beige
InChI 1S/C20H30N2O4/c1-4-5-11-17(13-23)21-19(24)18(12-15(2)3)22-20(25)26-14-16-9-7-6-8-10-16/h6-10,13,15,17-18H,4-5,11-12,14H2,1-3H3,(H,21,24)(H,22,25)/t17-,18-/m0/s1
InChIKey PGGUOGKHUUUWAF-ROUUACIJSA-N
SMILES C(OCC1=CC=CC=C1)(=O)N[C@H](C(N[C@H](C=O)CCCC)=O)CC(C)C
CAS DataBase Reference 117591-20-5(CAS DataBase Reference)
FDA UNII 18X9FR245W
UNSPSC Code 12352202
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352-P305+P351+P338
Safety Statements  24/25
WGK Germany  3
HS Code  29242990
Storage Class 11 - Combustible Solids

CALPEPTIN price More Price(49)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 03-34-0051 Calpeptin - CAS 117591-20-5 - Calbiochem A cell-permeable calpain inhibitor (ID?? = 52 nM for calpain-1; ID?? = 34 nM for calpain-2; ID?? = 138 nM for papain). 117591-20-5 5mg $166 2026-04-30 Buy
Sigma-Aldrich 03-34-0051 Calpeptin - CAS 117591-20-5 - Calbiochem A cell-permeable calpain inhibitor (ID?? = 52 nM for calpain-1; ID?? = 34 nM for calpain-2; ID?? = 138 nM for papain). 117591-20-5 25mg $411 2026-04-30 Buy
Sigma-Aldrich 03-34-0051 Calpeptin - CAS 117591-20-5 - Calbiochem A cell-permeable calpain inhibitor (ID?? = 52 nM for calpain-1; ID?? = 34 nM for calpain-2; ID?? = 138 nM for papain). 117591-20-5 100mg $1180 2026-04-30 Buy
Cayman Chemical 14593 Calpeptin ≥90% 117591-20-5 5mg $90 2026-04-30 Buy
Cayman Chemical 14593 Calpeptin ≥90% 117591-20-5 10mg $124 2026-04-30 Buy
Product number Packaging Price Buy
03-34-0051 5mg $166 Buy
03-34-0051 25mg $411 Buy
03-34-0051 100mg $1180 Buy
14593 5mg $90 Buy
14593 10mg $124 Buy

CALPEPTIN Chemical Properties,Uses,Production

Chemical Properties

white to off-white powder

Uses

Calpeptin is used to to inhibit the activities of cathepsin L and calpain-1. Calpeptin blocked the expression of aspartyl protease cathepsin D, amyloid precursor protein, and calparin. It acts as an inhibitor of the Ca2+-dependent protease, calpain. Prevents collagen- and thrombin-induced platelet aggregation, probably by blocking calpain induced phospholipase C and thromboxane synthase activation. Potent cathepsin L inhibitor. It is shown to preferentially inhibit a subset of protein-tyrosine phosphatases.

Definition

ChEBI: Calpeptin is an amino acid amide.

General Description

Calpeptin (Z-Leu-nLeu-H) is a cell permeable, peptide aldehyde inhibitor. It is more sensitive to calpain I compared to other inhibitors, such as Z-Leu-Met-H and leupeptin. Calpeptin stimulates neurite elongation in differentiating pheochromocytoma (PC12) cells. Calpeptin decreases microgliosis, astrogliosis, axonal damage and neuron and oligodendrocyte death in experimental autoimmune encephalomyelitis (EAE) spinal cord. Therefore, it can be considered as a potent therapeutic for treating EAE and multiple sclerosis (MS).

Biological Activity

Potent, cell-permeable inhibitor of the Ca 2+ -dependent protease, calpain. Prevents collagen- and thrombin-induced platelet aggregation, probably by blocking calpain induced phospholipase C and thromboxane synthase activation. Potent cathepsin L inhibitor. Recently shown to preferentially inhibit a subset of protein-tyrosine phosphatases.

Biochem/physiol Actions

Calpeptin is a rho kinase activator and an inhibitor of calpains, a family of calcium-dependent cysteine proteases involved in apoptosis, long-term potentiation in neurons, and cell cycle progression.

in vitro

calpeptin reduced production of tgf-b1, il-6, angiopoietin-1 and collagen synthesis from lung fibroblasts. calpeptin also reduced both angiopoietin-1-dependent migration and il-6-dependent proliferation of the cells, which could be the underlying mechanism of the preventive effect of calpeptin on pulmonary fibrosis [1].

in vivo

the preventive effect of calpeptin has been examined on bleomycin-induced pulmonary fibrosis in mice. histological examinations and quantitative measurements of related proteins in bleomycin-treated mouse lung tissues with or without calpeptin were performed. calpeptin histologically ameliorated bleomycininduced pulmonary fibrosis in mice. results showed that calpeptin decreased the expression of il-6, tgf-b1, angiopoietin-1 and collagen type ia1 mrna in mouse lung tissues [1].

IC 50

5 nm for human calpain 1

storage

Desiccate at +4°C

References

[1] tabata c,tabata r,nakano t. the calpain inhibitor calpeptin prevents bleomycin-induced pulmonary fibrosis in mice. clin exp immunol.2010 dec;162(3):560-7.

2018-66-8
117591-20-5
Synthesis of CALPEPTIN from N-Cbz-L-Leucine

CALPEPTIN Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 144)Suppliers
Supplier Tel Email Country ProdList Advantage
TargetMol Chemicals Inc.
+1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
Career Henan Chemica Co
+86-0371-86658258 +86-13203830695 laboratory@coreychem.com China 30203 58
HANGZHOU CLAP TECHNOLOGY CO.,LTD
86-571-88216897,88216896 13588875226 sales@hzclap.com CHINA 6290 58
BOC Sciences
16314854226; +8616314854226 inquiry@bocsci.com United States 19852 58
Zhejiang J&C Biological Technology Co.,Limited
+1-2135480471 sales@sarms4muscle.com China 10378 58
Nextpeptide Inc
+86-0571-81612335 +8613336028439 sales@nextpeptide.com China 19905 58
InvivoChem
+1-708-310-1919 +1-13798911105 sales@invivochem.cn United States 6378 58
TargetMol Chemicals Inc.
+1-781-999-5354; support@targetmol.com United States 38999 58
ShenZhen Trendseen Biological Technology Co.,Ltd.
13417589054 trendseenbio@gmail.com China 11674 58
Zibo Hangyu Biotechnology Development Co., Ltd
+86-0533-2185556 +86-15965530500 nickzhang@hangyubiotech.com China 9935 58

View Lastest Price from CALPEPTIN manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Calpeptin pictures 2026-07-27 Calpeptin
117591-20-5
$30.00-61.00 99.46% 10g TargetMol Chemicals Inc.
  • Calpeptin pictures
  • Calpeptin
    117591-20-5
  • $30.00-61.00
  • 99.46%
  • TargetMol Chemicals Inc.

CALPEPTIN Spectrum

CALPEPTIN BENZYLOXYCARBONYLLEUCYL-NORLEUCINAL BENZYLOXYCARBONYLDIPEPTIDYL ALDEHYDE N-CBZ-L-LEUCYL-NORLEUCINAL N-BENZYLOXYCARBONYL-L-LEUCYLNORLEUCINAL Z-LEU-NLE-CHO Z-LEU-NORLEUCINAL;N-BENZYLOXYCARBONYL-L-LEUCYL-NORLEUCINAL Calpeptin - CAS 117591-20-5 - Calbiochem CALPEPTIN【benzyl ((2S,4S)-6-methyl-3-oxo-2-((R)-1-oxohexan-2-yl)piperidin-4-yl)carbamate】 CS-1747 Z-LEU-NLE-OH Z-LEU-NORLEUCINAL N-[N-[(Phenylmethoxy)carbonyl]-L-leucyl]-L-norleucinal Calpeptin,95% CalpeptinN-Benzyloxycarbonyl-L-leucyl-norleucinal CarbaMic acid, [(1S)-1-[[[(1S)-1-forMylpentyl]aMino]carbonyl]-3-Methylbutyl]-, phenylMethyl ester benzyl (S)-4-methyl-1-oxo-1-((S)-1-oxohexan-2-ylamino)pentan-2-ylcarbamate N-[(1S)-1-[[(1S)-1-Formylpentyl]Carbamoyl]-3-Methyl-Butyl]Carbamic Acid Be N-[(1S)-1-[[[(1S)-1-Formylpentyl]Amino]-Oxomethyl]-3-Methylbutyl]Carbamic Acid Phenylmethyl Ester Phenylmethyl N-[(1S)-1-[[(1S)-1-Formylpentyl]Carbamoyl]-3-Methyl-Butyl]Carbamate N-Benzyloxycarbonyl-L-leucylnorieucinal Carbamic acid, N-[(1S)-1-[[[(1S)-1-formylpentyl]amino]carbonyl]-3-methylbutyl]-, phenylmethyl ester Calpeptin, cell-permeable calpain inhibitor Calpeptin, 10 mM in DMSO Calpain Inhibitor:Calpeptin 117591-20-5 11759-20-5 C20H30N2O4 Inhibitors Calcium signaling