2. Apoptosis
  3. Apoptosis
  4. Brassinolide

Brassinolide  (Synonyms: Brassin lactone)

Cat. No.: HY-N0273 Purity: 99.23%
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Brassinolide is a predominant plant growth modulator that regulate plant cell elongation.

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

CAS No. : 72962-43-7

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10 mM * 1 mL in DMSO
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Customer Review

Based on 4 publication(s) in Google Scholar

Other Forms of Brassinolide:

Brassinolide Related Antibodies

Top Publications Citing Use of Products

    Brassinolide purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Mar 30:142626.  [Abstract]

    The exogenous application of Brassinolide (BR) (0.05 mg/L; once daily for 3 d) significantly upregulated the transcript levels of BrFBA2, BrGADPH, BrPGK, and BrPK in baby Chinese cabbage seedlings at low temperature.

    Brassinolide purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Mar 30:142626.  [Abstract]

    Brassinolide (BR) (0.05 mg/L; once daily for 3 d) enhanced the release of ATP by 33.23 % in baby Chinese cabbage seedlings at low temperature.

    Brassinolide purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Mar 30:142626.  [Abstract]

    Exogenous Brassinolide (BR) (0.05 mg/L; once daily for 3 d) substantially increased the levels of endogenous NO and SNO by 1.56 and 1.99 times in baby Chinese cabbage seedlings at low temperatures.

    Brassinolide purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Mar 30:142626.  [Abstract]

    Exogenous Brassinolide (BR) (0.05 mg/L; once daily for 3 d) application significantly increased the level of total S-nitrosylated protein in baby Chinese cabbage seedlings at low temperatures.

    Brassinolide purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Mar 30:142626.  [Abstract]

    Exogenous Brassinolide (BR) (0.05 mg/L; once daily for 3 d) reversed the reduction of the level of FBA2 protein S-nitrosylation induced by low-temperature stress in the OE-BrFBA2 Chinese cabbage seedlings.

    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Brassinolide is a predominant plant growth modulator that regulate plant cell elongation.

    IC50 & Target

    plant growth modulator[1]
    In Vitro

    Brassinolide is a plant sterol first isolated from pollen of rape (Brassica napus L.). Brassinolide can induce a time and concentration-dependent cytotoxicity in PC-3 cells. The mode of cell death appears to be predominately apoptosis, as shown by flow-cytometric analysis, fluorescence and transmission electron microscopes. Caspase-3 activity is obviously increased after Brassinolide treatment. Western blot studies indicate that treatment with Brassinolide triggered a time-dependent decrease in the expression of anti-apoptotic protein Bcl-2, which suggests that Brassinolide can induce cytotoxicity in PC-3 cells by triggering apoptosis. Brassinolide might therefore be a promising candidate for the treatment of prostate cancer[1]. Brassinolide is a plant growth modulator, on multidrug resistance (MDR) of human T lymphoblastoid cell line CCRF-VCR 1000 which is obtained by progressively addition of vincristine (VCR) to sensitive CCRF-CEM cells, and to explore preliminarily the mechanism of reversing action. After treatment of Brassinolide under the concentration of 0.001-10 μg/mL, the resistance of CCRF-VCR is reversed partly with the reversing folds respectively as 4.4-11.6. The intracellular accumulation of rhodamine 123 is significantly reduced in the resistant cells. After treatment of Brassinolide, the accumulation increased, the level of fluorescent dye is situated between resistant cells and sensitive cells. No alteration of the catalytic activity of topoisomerase II is found among three groups. The level of protein expression of p53 in resistant cells is higher than that of sensitive cells. After Brassinolide treatment, the expression of p53 in CCRF-VCR cells restored to the level of sensitive cells. Brassinolide can effectively reverse the resistance of CCRF-VCR cells by inhibiting the effusion of drug transported by P-glucoprotein. To down regulate the abnormal expression of p53 maybe one of the mechanisms of reversing MDR for Brassinolide[2].

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

    Brassinolide Related Antibodies
    Molecular Weight

    480.68

    Formula

    C28H48O6
    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    O[C@H]1[C@@H](O)C[C@@](C(OC[C@]2([H])[C@]3([H])CC[C@@]4(C)[C@]2(CC[C@]4([H])[C@H](C)[C@@H](O)[C@H](O)[C@H](C(C)C)C)[H])=O)([H])[C@]3(C)C1
    Structure Classification
    Initial Source
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 1 year
    -20°C 6 months
    Solvent & Solubility
    In Vitro: 

    DMSO : 100 mg/mL (208.04 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    Ethanol : 14.29 mg/mL (29.73 mM; Need ultrasonic)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.0804 mL 10.4019 mL 20.8039 mL
    5 mM 0.4161 mL 2.0804 mL 4.1608 mL
    View the Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    • Molarity Calculator

    • Dilution Calculator

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    Mass
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    Volume
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    Molecular Weight *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

    ×
    Volume (start)

    V1

    =
    Concentration (final)

    C2

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    Volume (final)

    V2

    In Vivo:

    Select the appropriate dissolution method based on your experimental animal and administration route.

    For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
    To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

      Solubility: ≥ 2.5 mg/mL (5.20 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

      Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
    • Protocol 2

      Add each solvent one by one:  10% DMSO    90% Corn Oil

      Solubility: ≥ 2.5 mg/mL (5.20 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

    Dosage

    mg/kg

    Animal weight
    (per animal)

    g

    Dosing volume
    (per animal)

    μL

    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Please enter your animal formula composition:
    %
    DMSO +
    % 
    +
    %
    Tween-80 +
    %
    Saline
    Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
    The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
    Calculation results:
    Working solution concentration: mg/mL
    Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
    Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
     If the continuous dosing period exceeds half a month, please choose this protocol carefully.
    Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
    Purity & Documentation

    Purity: 99.23%

    SDS (251 KB)

    COA (257 KB) HNMR (306 KB) RP-HPLC (250 KB) MS (70 KB)

    Handling Instructions (2659 KB)
    References
    Cell Assay
    [2]

    MTT method is used to detect the resistant factor of resistant cell line and the reversing fold after addition of Brassinolide. The intracellular accumulation of rhodamine 123, a fluorescent dye transported by P-glycoprotein is detected by flow cytometry, the catalytic activity of topoisomerase II is assessed by Sulliven method to find the effect of Brassinolide on resistance. The protein expression of p53 is measured using Western blotting in the sensitive cells and resistant cells to explore the effect of Brassinolide[2].

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

    Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    Ethanol / DMSO 1 mM 2.0804 mL 10.4019 mL 20.8039 mL 52.0097 mL
    5 mM 0.4161 mL 2.0804 mL 4.1608 mL 10.4019 mL
    10 mM 0.2080 mL 1.0402 mL 2.0804 mL 5.2010 mL
    15 mM 0.1387 mL 0.6935 mL 1.3869 mL 3.4673 mL
    20 mM 0.1040 mL 0.5201 mL 1.0402 mL 2.6005 mL
    25 mM 0.0832 mL 0.4161 mL 0.8322 mL 2.0804 mL
    DMSO 30 mM 0.0693 mL 0.3467 mL 0.6935 mL 1.7337 mL
    40 mM 0.0520 mL 0.2600 mL 0.5201 mL 1.3002 mL
    50 mM 0.0416 mL 0.2080 mL 0.4161 mL 1.0402 mL
    60 mM 0.0347 mL 0.1734 mL 0.3467 mL 0.8668 mL
    80 mM 0.0260 mL 0.1300 mL 0.2600 mL 0.6501 mL
    100 mM 0.0208 mL 0.1040 mL 0.2080 mL 0.5201 mL
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    Brassinolide Related Classifications

    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

    Keywords:

    Brassinolide72962-43-7Brassin lactoneApoptosisInhibitorinhibitorinhibit

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