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Cat.No. 2156 - Embelin | C17H26O4 | CAS No. 550-24-3
Description: Inhibitor of X-linked inhibitor of apoptosis (XIAP); cell-permeable and antitumor
Chemical Name: 2,5-Dihydroxy-3-undecyl-2,5-cyclohexadiene-1,4-dione
Purity: ≥98% (HPLC)

Biological Activity

Cell-permeable, non-peptide inhibitor of X-linked inhibitor of apoptosis (XIAP) (IC50 = 4.1 μM in competition binding assay with Smac peptide); binds to the BIR3 domain, preventing XIAP interaction with caspase-9 and Smac. Inhibits cell growth, induces apoptosis and activates caspase-9 in prostate cancer cells (IC50 4 - 6 μM), but has a weaker effect on normal prostate cells (IC50 = 19 - 20 μM). Overcomes the protective effect of XIAP on apoptosis in XIAP-transfected Jurkat cells. Anti-tumor, analgesic and anti-inflammatory in vivo.

Technical Data

M. Wt 294.39
Formula C17H26O4
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 550-24-3
PubChem ID 3218

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.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 29.44 100
ethanol 2.94 10mM with gentle warming

Preparing Stock Solutions

The following data is based on the product molecular weight 294.39. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 3.4 mL 16.98 mL 33.97 mL
5 mM 0.68 mL 3.4 mL 6.79 mL
10 mM 0.34 mL 1.7 mL 3.4 mL
50 mM 0.07 mL 0.34 mL 0.68 mL

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Product Datasheets

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References are publications that support the products' biological activity.

Chitra et al (1994) Antitumor, anti-inflammatory and analgesic property of embelin, a plant product. Chemotherapy 40 109 PMID: 7510605

Nikolovska-Coleska et al (2004) Discovery of embelin as a cell-permeable, small-molecular weight inhibitor of XIAP through structure-based computational screening of a traditional herbal medicine three-dimensional structure database. J.Med.Chem. 47 2430 PMID: 15115387

Modak et al (2013) Probing p300/CBP associated factor (PCAF)-dependent pathways with a small molecule inhibitor. ACS Chem.Biol. 8 1311 PMID: 23570531

If you know of a relevant reference for Embelin, please let us know.

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Keywords: Embelin, supplier, inhibitors, inhibits, X-linked, apoptosis, XIAP, cell-permeable, antitumor, c-IAP, Inhibitor, of, Apoptosis, (IAP), Inhibitor, of, Apoptosis, (IAP), Tocris Bioscience

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Literature in this Area


Cancer Research Product Guide

A collection of over 750 products for cancer research, the guide includes research tools for the study of:

  • Cancer Metabolism
  • Epigenetics in Cancer
  • Receptor Signaling
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Programmed Cell Death

Programmed Cell Death Poster

There are two currently recognized forms of programmed cell death: apoptosis and necroptosis. This poster summarizes the signaling pathways involved in apoptosis, necroptosis and cell survival following death receptor activation, and highlights the influence of the molecular switch, cFLIP, on cell fate.

Pathways for Embelin


Apoptosis Signaling Pathway

Apoptosis is a physiological process for cell death that is critical during aging and development. It may also be referred to as cell 'suicide'. Apoptosis can be triggered by events both inside and outside of the cell.