WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 563498

CAS#: 262381-84-0

Description: JPM-OEt is a broad spectrum cysteine cathepsin inhibitor.

Chemical Structure

CAS# 262381-84-0

Theoretical Analysis

MedKoo Cat#: 563498
Name: JPM-OEt
CAS#: 262381-84-0
Chemical Formula: C20H28N2O6
Exact Mass: 392.1947
Molecular Weight: 392.45
Elemental Analysis: C, 61.21; H, 7.19; N, 7.14; O, 24.46

Price and Availability

Size Price Availability Quantity
5.0mg USD 295.0 2 Weeks
10.0mg USD 550.0 2 Weeks
25.0mg USD 950.0 2 Weeks
50.0mg USD 1650.0 2 Weeks
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Synonym: JPM-OEt; JPM OEt; JPMOEt; JPM-565 Ethyl ester;

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


InChi Code: InChI=1S/C20H28N2O6/c1-4-27-20(26)17-16(28-17)19(25)22-15(11-12(2)3)18(24)21-10-9-13-5-7-14(23)8-6-13/h5-8,12,15-17,23H,4,9-11H2,1-3H3,(H,21,24)(H,22,25)/t15-,16-,17-/m0/s1

SMILES Code: O=C([C@H]1O[C@@H]1C(N[C@H](C(NCCC2=CC=C(O)C=C2)=O)CC(C)C)=O)OCC

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

Shelf Life: >3 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: 2934.99.03.00

Safety Data Sheet (SDS):

Preparing Stock Solutions

The following data is based on the product molecular weight 392.45 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: Withana NP, Blum G, Sameni M, Slaney C, Anbalagan A, Olive MB, Bidwell BN, Edgington L, Wang L, Moin K, Sloane BF, Anderson RL, Bogyo MS, Parker BS. Cathepsin B inhibition limits bone metastasis in breast cancer. Cancer Res. 2012 Mar 1;72(5):1199-209. doi: 10.1158/0008-5472.CAN-11-2759. Epub 2012 Jan 19. PubMed PMID: 22266111; PubMed Central PMCID: PMC3538126.

2: Elie BT, Gocheva V, Shree T, Dalrymple SA, Holsinger LJ, Joyce JA. Identification and pre-clinical testing of a reversible cathepsin protease inhibitor reveals anti-tumor efficacy in a pancreatic cancer model. Biochimie. 2010 Nov;92(11):1618-24. doi: 10.1016/j.biochi.2010.04.023. Epub 2010 May 4. PubMed PMID: 20447439; PubMed Central PMCID: PMC3814225.

3: Schurigt U, Sevenich L, Vannier C, Gajda M, Schwinde A, Werner F, Stahl A, von Elverfeldt D, Becker AK, Bogyo M, Peters C, Reinheckel T. Trial of the cysteine cathepsin inhibitor JPM-OEt on early and advanced mammary cancer stages in the MMTV-PyMT-transgenic mouse model. Biol Chem. 2008 Aug;389(8):1067-74. doi: 10.1515/BC.2008.115. PubMed PMID: 18710344.

4: Bell-McGuinn KM, Garfall AL, Bogyo M, Hanahan D, Joyce JA. Inhibition of cysteine cathepsin protease activity enhances chemotherapy regimens by decreasing tumor growth and invasiveness in a mouse model of multistage cancer. Cancer Res. 2007 Aug 1;67(15):7378-85. PubMed PMID: 17671208.

5: Greenbaum D, Medzihradszky KF, Burlingame A, Bogyo M. Epoxide electrophiles as activity-dependent cysteine protease profiling and discovery tools. Chem Biol. 2000 Aug;7(8):569-81. PubMed PMID: 11048948.

6: Shi GP, Bryant RA, Riese R, Verhelst S, Driessen C, Li Z, Bromme D, Ploegh HL, Chapman HA. Role for cathepsin F in invariant chain processing and major histocompatibility complex class II peptide loading by macrophages. J Exp Med. 2000 Apr 3;191(7):1177-86. PubMed PMID: 10748235; PubMed Central PMCID: PMC2193169.

7: Bogyo M, Verhelst S, Bellingard-Dubouchaud V, Toba S, Greenbaum D. Selective targeting of lysosomal cysteine proteases with radiolabeled electrophilic substrate analogs. Chem Biol. 2000 Jan;7(1):27-38. PubMed PMID: 10662686.


5.0mg / USD 295.0