2. NF-κB
  3. IKK
  4. BMS-345541

BMS-345541 is a selective inhibitor of the catalytic subunits of IKK (IKK-2 IC50=0.3 μM, IKK-1 IC50=4 μM). BMS-345541 binds at an allosteric site of IKK.

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

BMS-345541 Chemical Structure

BMS-345541 Chemical Structure

CAS No. : 445430-58-0

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 118 In-stock
Solution
10 mM * 1 mL in DMSO USD 118 In-stock
Solid
1 mg USD 42 In-stock
5 mg USD 90 In-stock
10 mg USD 140 In-stock
25 mg USD 280 In-stock
50 mg USD 450 In-stock
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Customer Review

Based on 24 publication(s) in Google Scholar

Other Forms of BMS-345541:

BMS-345541 Related Antibodies

Top Publications Citing Use of Products

    BMS-345541 purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2020 Jul;127:110116.  [Abstract]

    Relative NFκB, p-NFκB, p-IKBα and t-IKBα protein levels in spheres in the control, TNFα, TNFα + BMS-345541 and TNFα + resveratrol groups.

    BMS-345541 purchased from MedChemExpress. Usage Cited in: J Mol Med. 2020 Oct;98(10):1479-1491.  [Abstract]

    Pretreatment with CMC2.24 plus BMS-345541 (5 μM) decreases MMP-3, cleaved caspase-3, VEGF, and RUNX2 expression and increased Col2a1 and Bcl-2 expression. BMS-345541 (5 μM) remarkably enhances CMC2.24-mediated decrease in p-p65, pIκB-α, and Hif-2α expression.

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    IKK-α IKK-β IKK IKKε TBK1

    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    BMS-345541 is a selective inhibitor of the catalytic subunits of IKK (IKK-2 IC50=0.3 μM, IKK-1 IC50=4 μM). BMS-345541 binds at an allosteric site of IKK.

    IC50 & Target[1]

    IKK-2

    0.3 μM (IC50)

    IKK-1

    4 μM (IC50)

    In Vitro

    BMS-345541 selectively inhibits the stimulated phosphorylation of IκBα in cells (IC50=4 μM). Consistent with the role of IKK/NF-κB in the regulation of cytokine transcription, BMS-345541 inhibits lipopolysaccharide-stimulated tumor necrosis factor α, interleukin-1β, interleukin-8, and interleukin-6 in THP-1 cells with IC50 values in the 1 to 5 μM range[1]. BMS-345541 treatment results in a concentration-dependent inhibition of melanoma cell proliferation in SK-MEL-5, A375, and Hs 294T cells. BMS-345541 (0, 100 μM) shows apoptotic features as revealed by TUNEL staining and nuclear condensation[2].

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

    BMS-345541 Related Antibodies
    In Vivo

    BMS-345541 (10 mg/kg, p.o.) results in prolonged serum drug levels, with concentrations sustained at or above 1 μM for many hours in mice. BMS-345541 dose-dependently inhibits the production of TNFα measured in the serum of animals challenged with an intraperitoneal administration of LPS[1]. BMS-345541 (0, 10, 25, and 75 mg/kg, p.o.) effectively inhibits SK-MEL-5 tumor growth in a dose-dependent manner in the mice. Tumor-bearing mice treated with 75 mg/kg of BMS-345541 show effective inhibition of growth of SK-MEL-5, A375, and Hs 294T tumors by 86±2.8%, 69±11% and 67±3.4%, respectively[2].

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

    255.32

    Formula

    C14H17N5
    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    CC1=CN=C2C(NCCN)=NC3=CC=C(C)C=C3N21
    Shipping

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

    DMSO : 10 mg/mL (39.17 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : 10 mg/mL (39.17 mM; ultrasonic and warming and heat to 60°C)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 3.9167 mL 19.5833 mL 39.1665 mL
    5 mM 0.7833 mL 3.9167 mL 7.8333 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    * Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

    • Molarity Calculator

    • Dilution Calculator

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

    Mass
    =
    Concentration
    ×
    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

    ×
    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    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 1 mg/mL (3.92 mM); Clear solution

      This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

      Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
    • Protocol 2

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

      Solubility: ≥ 1 mg/mL (3.92 mM); Clear solution

      This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 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.
    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: 99.86%

    COA (247 KB) HNMR (240 KB) LCMS (94 KB)

    Handling Instructions (2659 KB)
    References
    Kinase Assay
    [1]

    Assays measuring the enzyme-catalyzed phosphorylation of GST-IκBα are performed by adding enzyme (IKK-2, IKK-1, or IKK-ε, typically to a final concentration of 0.5 μg/mL) at 30°C to solutions of 100 μg/mL GST-IκBα and 5 μM [33P]ATP in 40 mM Tris-HCl, pH 7.5, containing 4 mM MgCl2, 34 mM sodium phosphate, 3 mM NaCl, 0.6 mM potassium phosphate, 1 mM KCl, 1 mM dithiothreitol, 3% (w/v) glycerol, and 250 μg/mL bovine serum albumin. The specific activity of [33P]ATP used in the assay is 100 Ci/mmol. After 5 min, the kinase reactions are stopped by the addition of 2× LaemmLi sample buffer and heat-treated at 90°C for 1 min. The samples are then loaded on to NuPAGE 10% BisTris gels. After completion of SDS-PAGE, gels are dried on a slab gel dryer. The bands are then detected using a 445Si PhosphorImager, and the radioactivity is quantified using ImageQuant software. Under these conditions, the degree of phosphorylation of GST-IκBα is linear with time and concentration of enzyme[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Cell Assay
    [2]

    SK-MEL-5 cells are treated with BMS-345541 at different concentrations (0, 1.0, 10, and 100 μM) for different time periods. The cells are collected by trypsinization, fixed in 70% ethanol for 2 hours on ice and stained with PI solution (PBS containing 2 μg/mL PI, 0.1% Triton X-100, and 125 units/mL RNase A) at 37°C for 30 minutes. Cell fluorescence is measured by flow cytometry with 488 nm excitation and 620 nm emission filters and resulting data are analyzed using the software program MultiCycle[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Animal Administration
    [1]

    Mice[1]
    BMS-345541 is administered either by intravenous tail vein injection or by peroral gavage to groups of three 18-22 g female BALB/c mice. BMS-345541 is formulated as a 2 mg/mL solution in 3% Tween 80, water. Mice receive either a 2 mg/kg (1 mL/kg) intravenous bolus or a 10 mg/kg (5 mL/kg) peroral gavage. Whole blood samples are taken from individual mice by orbital bleed and cardiac puncture at 0, 0.05, 0.25, 0.5, 1.0, 3.0, 6.0, and 8.0 h after dosing. Whole blood is centrifuged at 20×103×g for 5 min. Serum is stored at -20°C until analysis.

    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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO / H2O 1 mM 3.9167 mL 19.5833 mL 39.1665 mL 97.9163 mL
    5 mM 0.7833 mL 3.9167 mL 7.8333 mL 19.5833 mL
    10 mM 0.3917 mL 1.9583 mL 3.9167 mL 9.7916 mL
    15 mM 0.2611 mL 1.3056 mL 2.6111 mL 6.5278 mL
    20 mM 0.1958 mL 0.9792 mL 1.9583 mL 4.8958 mL
    25 mM 0.1567 mL 0.7833 mL 1.5667 mL 3.9167 mL
    30 mM 0.1306 mL 0.6528 mL 1.3056 mL 3.2639 mL

    * Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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    BMS-345541 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:

    BMS-345541445430-58-0BMS345541BMS 345541IKKIκB kinaseI kappa B kinaseInhibitorinhibitorinhibit

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