1. Apoptosis
  2. TNF Receptor
  3. SPD304

SPD304 is a selective TNF-α inhibitor, which promotes dissociation of TNF trimers and therefore blocks the interaction of TNF and its receptor. SPD304 has an IC50 of 22 μM for inhibiting in vitro TNF receptor 1 (TNFR1) binding to TNF-α.

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

CAS No. : 869998-49-2

Size Price Stock Quantity
Oil + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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10 mM * 1 mL in DMSO In-stock
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Customer Review

Based on 7 publication(s) in Google Scholar

Other Forms of SPD304:

Top Publications Citing Use of Products

    SPD304 purchased from MedChemExpress. Usage Cited in: J Biomed Sci. 2025 May 9;32(1):47.  [Abstract]

    Representative western blot images showed the expression of KRT6A in HaCaT cells treated with high temperatures and with or without SPD304 (2μM).

    SPD304 purchased from MedChemExpress. Usage Cited in: Biochem Biophys Rep. 2025 Aug 2:43:102187.  [Abstract]

    Consequently, we treated the 4NQO/EtOH group with 6 μM SPD304 for 24 h, observing significantly reduced migration and invasion capacities.

    SPD304 purchased from MedChemExpress. Usage Cited in: CNS Neurosci Ther. 2024 May;30(5):e14749.  [Abstract]

    The selective inhibitor of TNFα, SPD304 (5, 8μM), suppressed the upregulation of MAPK pathway proteins induced by TNFα.

    SPD304 purchased from MedChemExpress. Usage Cited in: CNS Neurosci Ther. 2024 May;30(5):e14749.  [Abstract]

    Cell proliferation, migration, and invasion experiments demonstrated that TNFα overexpression promoted proliferation, migration, and invasion of GH3 cells, while SPD304 (5, 8 μM) inhibited this effect induced by TNFα.

    SPD304 purchased from MedChemExpress. Usage Cited in: Cell Death Dis. 2020 Dec 11;11(12):1050.  [Abstract]

    Primary IECs were treated with 10 μg/ml mtDNA, 1 μM IFN alpha-IFNAR-IN-1 (IFNAR-IN), or 2 μM SPD304. Western blot was used to analyze necroptosis signaling.
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    SPD304 is a selective TNF-α inhibitor, which promotes dissociation of TNF trimers and therefore blocks the interaction of TNF and its receptor. SPD304 has an IC50 of 22 μM for inhibiting in vitro TNF receptor 1 (TNFR1) binding to TNF-α[1][2].

    IC50 & Target

    IC50: 22 μM (TNFα)[1].

    Cellular Effect
    Cell Line Type Value Description References
    HEK-293T IC50
    15 μM
    Compound: SPD304
    Inhibition of human TNFalpha induced NFkappaB activation in HEK293T cells after 6 hrs by dual-glo luciferase assay
    Inhibition of human TNFalpha induced NFkappaB activation in HEK293T cells after 6 hrs by dual-glo luciferase assay
    10.1039/C5MD00549C
    L929 IC50
    5 μM
    Compound: 1
    Inhibition of human TNF assessed as reduction in TNF-induced cell death of actinomycin D activated mouse L929 cells preincubated for 30 mins followed by cell addition measured after 18 to 24 hrs by crystal violet staining based spectrophotometric analysis
    Inhibition of human TNF assessed as reduction in TNF-induced cell death of actinomycin D activated mouse L929 cells preincubated for 30 mins followed by cell addition measured after 18 to 24 hrs by crystal violet staining based spectrophotometric analysis
    10.1039/C5MD00023H
    In Vitro

    SPD304 (2 μM) significantly rescues the survivability of aHSCs, reduces the production of lipid hydroxides, and increased intracellular GSH. The co-treatment of GA (75 μM) and SPD304 (2 μM), down-regulate TRADD almost 2-fold (w/o inhibitor vs. w/ inhibitor) and p RIP3 1.4 fold compared to GA alone, and promotes caspase 8 activation[4].

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

    In Vivo

    SPD304 cannot be used in vivo due to its high toxicity[3].

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

    Molecular Weight

    547.61

    Formula

    C32H32F3N3O2

    CAS No.
    Appearance

    Oil

    Color

    White to off-white

    SMILES

    O=C1C(CN(C)CCN(C)CC2=CN(C3=CC=CC(C(F)(F)F)=C3)C4=C2C=CC=C4)=COC5=CC(C)=C(C)C=C15

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Pure form -20°C 3 years
    In solvent -80°C 6 months
    -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : 25 mg/mL (45.65 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : < 0.1 mg/mL (insoluble)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 1.8261 mL 9.1306 mL 18.2612 mL
    5 mM 0.3652 mL 1.8261 mL 3.6522 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    • 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

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    Volume (start)

    V1

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    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    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 1.25 mg/mL (2.28 mM); Clear solution

      This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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: 1.25 mg/mL (2.28 mM); Suspended solution; Need ultrasonic

      This protocol yields a suspended solution of 1.25 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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: 99.72%

    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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 1.8261 mL 9.1306 mL 18.2612 mL 45.6529 mL
    5 mM 0.3652 mL 1.8261 mL 3.6522 mL 9.1306 mL
    10 mM 0.1826 mL 0.9131 mL 1.8261 mL 4.5653 mL
    15 mM 0.1217 mL 0.6087 mL 1.2174 mL 3.0435 mL
    20 mM 0.0913 mL 0.4565 mL 0.9131 mL 2.2826 mL
    25 mM 0.0730 mL 0.3652 mL 0.7304 mL 1.8261 mL
    30 mM 0.0609 mL 0.3044 mL 0.6087 mL 1.5218 mL
    40 mM 0.0457 mL 0.2283 mL 0.4565 mL 1.1413 mL
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    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.

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    Product Name:
    SPD304
    Cat. No.:
    HY-111255
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