1. Cell Cycle/DNA Damage
  2. CDK
  3. Cucurbitacin E

Cucurbitacin E (Synonyms: α-Elaterin; α-Elaterine)

Cat. No.: HY-N0417 Purity: 99.92%
Handling Instructions

Cucurbitacin E is a natural compound which from the climbing stem of Cucumic melo L. Cucurbitacin E significantly suppresses the activity of the cyclin B1/CDC2 complex.

For research use only. We do not sell to patients.

Cucurbitacin E Chemical Structure

Cucurbitacin E Chemical Structure

CAS No. : 18444-66-1

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 176 In-stock
Estimated Time of Arrival: December 31
5 mg USD 144 In-stock
Estimated Time of Arrival: December 31
10 mg USD 228 In-stock
Estimated Time of Arrival: December 31
50 mg   Get quote  
100 mg   Get quote  

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Customer Review

Based on 2 publication(s) in Google Scholar

Other Forms of Cucurbitacin E:

Top Publications Citing Use of Products

Publications Citing Use of MCE Cucurbitacin E

    Cucurbitacin E purchased from MCE. Usage Cited in: Signal Transduct Target Ther. 2020 May 20;5(1):56.

    Western Blot is performed to determine the protein levels of cyclin B1, Cdk1, and p-Drp1 Ser616. LMP1-positive cells are treated with or without cucurbitacin E (10 μM) for 24 h.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review


    Cucurbitacin E is a natural compound which from the climbing stem of Cucumic melo L. Cucurbitacin E significantly suppresses the activity of the cyclin B1/CDC2 complex.

    IC50 & Target[1]

    cyclin B1/CDC2




    In Vitro

    To explore the antitumor activity of Cucurbitacin E (CuE) against colorectal cancer (CRC) cells, an in vitro study is initiated in which each of the CRC cell lines is exposed to increasing doses of Cucurbitacin E (0, 2.5, 5, and 7.5 μM) over a period of 24 h. The proliferation of the Cucurbitacin E-treated cancer cells is then measured using the MTT method. Cucurbitacin E is shown to induce morphological changes in the primary colon cancer cells. Microscopic observation showed that following exposure to Cucurbitacin E (5 μM) between 6 and 24 h, the primary colon cancer cells underwent a remarkable change in morphology. Cucurbitacin E inhibits tumor growth by arresting the cell cycle in the G2/M phase via GADD45γ gene expression and the blockage of cyclin B1/CDC2 complex in primary CRC cells[1].

    In Vivo

    A high fat diet mice model of metabolic syndrome (HFD-MetS) is developed to assess the role of Cucurbitacin E (CuE) on body weight and fat tissue biology. Significant decrease in body weights of HFD-MetS mice treated with Cucurbitacin E (0.5mg/kg) are found as compared to HFD-MetS mice treated with vehicle alone. Cucurbitacin E treatment reduces all fat pads weights in HFD-MetS mice. 55% reduction is observed in total fat in mice, after treatment with Cucurbitacin E in comparison to HFD-MetS mice. Abdominal obesity is strongly associated with metabolic syndrome. Central obesity is reduced to 50% after Cucurbitacin E treatment as compared to HFD MetS mice, elucidating the effectiveness of Cucurbitacin E in targeting MetS[2].

    Molecular Weight




    CAS No.



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    Room temperature in continental US; may vary elsewhere.

    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 6 months
    -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : 50 mg/mL (89.82 mM; Need ultrasonic)

    H2O : < 0.1 mg/mL (insoluble)

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 1.7963 mL 8.9817 mL 17.9633 mL
    5 mM 0.3593 mL 1.7963 mL 3.5927 mL
    10 mM 0.1796 mL 0.8982 mL 1.7963 mL
    *Please refer to the solubility information to select the appropriate solvent.
    In Vivo:
    • 1.

      Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

      Solubility: 2.5 mg/mL (4.49 mM); Suspended solution; Need ultrasonic

    • 2.

      Add each solvent one by one:  10% DMSO    90% corn oil

      Solubility: ≥ 2.5 mg/mL (4.49 mM); Clear solution

    *All of the co-solvents are provided by MCE.
    Cell Assay

    The colorectal cancer (CRC) cells are seeded into 96-well culture plates at 5000 cells/well. The cells are treated with 0, 2.5, 5, and 7.5 μM Cucurbitacin E for 1-3 days. MTT dye (1 mg/mL) is added to each well for at least 4 h of treatment. The reaction is stopped by the addition of DMSO, and optical density is measured at 540 nm on a multi-well plate reader. Background absorbance of the medium in the absence of cells is subtracted. All samples are assayed in triplicate, and the mean for each experiment is calculated. Results are expressed as a percentage of control, which is considered as 100%. Each assay is carried out in triplicate, and the results are expressed as the mean[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Administration

    C57BL/6 male mice are used. The mice are designated as metabolic syndrome mice (HFD-MetS-mice). Briefly, the mice are randomly assigned into two groups according to their diet for 8 weeks (n = 10-12): high fat diet group (HFD) (60% fat, 20% carbohydrate, 20% protein) or the matched low fat, standard diet group (SD) (10% fat, 70% carbohydrate, 20% protein). After eight weeks on high fat diet, the mice with significant obese phenotype and fasting blood glucose levels ≥126 mg/dL are considered MetS mice. The MetS mice are continued on the HFD throughout the study. The MetS mice are then randomly divided into three additional groups, according to the treatment administered by oral gavage for 10 weeks (n=10-12): a low dose 0.25 mg/kg/day of Cucurbitacin E designated as HFD+Cucurbitacin E (L) or high dose 0.5 mg/kg/day of Cucurbitacin E, designated as HFD+Cucurbitacin E (H) or 50 mg/kg/day Orlistat (HFD+Orlistat). Animals on SD are administered 0.5% CMC by oral gavage[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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    Cucurbitacin Eα-Elaterinα-ElaterineCDKAutophagyCyclin dependent kinaseInhibitorinhibitorinhibit

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