1. Membrane Transporter/Ion Channel Neuronal Signaling Metabolic Enzyme/Protease Immunology/Inflammation NF-κB
  2. TRP Channel NADPH Oxidase Reactive Oxygen Species
  3. Diphenyleneiodonium chloride

Diphenyleneiodonium chloride  (Synonyms: DPI)

Cat. No.: HY-100965 Purity: 99.39%
COA Handling Instructions

Diphenyleneiodonium chloride is a NADPH oxidase (NOX) inhibitor and also functions as a TRPA1 activator with an EC50 of 1 to 3 μM. Diphenyleneiodonium chloride selectively inhibits intracellular reactive oxygen species.

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

Diphenyleneiodonium chloride Chemical Structure

Diphenyleneiodonium chloride Chemical Structure

CAS No. : 4673-26-1

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
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10 mM * 1 mL in DMSO USD 85 In-stock
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10 mg USD 77 In-stock
50 mg USD 264 In-stock
100 mg USD 462 In-stock
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Customer Review

Based on 35 publication(s) in Google Scholar

Top Publications Citing Use of Products

34 Publications Citing Use of MCE Diphenyleneiodonium chloride

WB

    Diphenyleneiodonium chloride purchased from MedChemExpress. Usage Cited in: Mediat Inflamm. 2020 Jun 6;2020:4321912.  [Abstract]

    Western blot result shows that compared with the agonist-CD137 group, the phosphorylation level of NF-κB in the DPI group is significantly reduced, indicating the interaction between ROS and NF-κB.

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    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Diphenyleneiodonium chloride is a NADPH oxidase (NOX) inhibitor and also functions as a TRPA1 activator with an EC50 of 1 to 3 μM. Diphenyleneiodonium chloride selectively inhibits intracellular reactive oxygen species.

    IC50 & Target

    NOX[1]
    EC50: 1 to 3 μM (TRPA1)[1]

    In Vitro

    Diphenyleneiodonium chloride is a NADPH oxidase (NOX) inhibitor and also functions as a TRPA1 activator with an EC50 of 1 to 3 μM. Application of Diphenyleneiodonium chloride to HEK-TRPA1 cells at a concentration ranges of 0.03 to 10 μM effectively induces a Ca2+ response. However, Diphenyleneiodonium chloride fails to evoke a Ca2+ response in control HEK cells, even at a relatively high dose of 10 μM[1]. When Diphenyleneiodonium chloride is included in the co-cultures, lipopolysaccharide (LPS)-induced preOL apoptosis is significantly inhibited. Treatment with Diphenyleneiodonium chloride is found to significantly attenuate the LPS-induced O2- production by 2.0-fold, reducing it to within 27% of the controls[2].

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

    In Vivo

    Intraplantar injection of 2 mM Diphenyleneiodonium chloride to the hindpaw causes licking or biting behavior[1]. Diphenyleneiodonium chloride treatment immediately or 24 h after lipopolysaccharide (LPS) injection significantly attenuates the LPS-induced loss of O4 positive cells. Treatment with Diphenyleneiodonium chloride either immediately or 24 h after LPS injection significantly ameliorates the LPS-induced disorganization of the white matter nerve fibers. However, treatment with DPI 48 h after LPS injection does not appear to correct the LPS-induced white matter damage. DPI treatment either immediately or 24 h after LPS injection significantly reduces the accumulation of both gp91phox and p67phox in the membrane fraction[2].

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

    Molecular Weight

    314.55

    Formula

    C12H8ClI

    CAS No.
    Unlabeled CAS

    Appearance

    Solid

    Color

    White to off-white

    SMILES

    C12=CC=CC=C1C3=CC=CC=C3[I+]2.[Cl-]

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    4°C, sealed storage, away from moisture

    *In solvent : -80°C, 1 year; -20°C, 6 months (sealed storage, away from moisture)

    Solvent & Solubility
    In Vitro: 

    DMSO : 3.33 mg/mL (10.59 mM; ultrasonic and warming and heat to 60°C; 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 3.1791 mL 15.8957 mL 31.7915 mL
    5 mM 0.6358 mL 3.1791 mL 6.3583 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

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

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

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    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: ≥ 0.33 mg/mL (1.05 mM); Clear solution

      This protocol yields a clear solution of ≥ 0.33 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (3.3 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% Corn Oil

      Solubility: ≥ 0.33 mg/mL (1.05 mM); Clear solution

      This protocol yields a clear solution of ≥ 0.33 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 (3.3 mg/mL) to 900 μL Corn oil, and mix evenly.

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    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:  50% PEG300    50% Saline

      Solubility: 10 mg/mL (31.79 mM); Suspended solution; Need ultrasonic

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

    Dosage

    mg/kg

    Animal weight
    (per animal)

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    Dosing volume
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    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Please enter your animal formula composition:
    %
    DMSO +
    +
    %
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    %
    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).

    *In solvent : -80°C, 1 year; -20°C, 6 months (sealed storage, away from moisture)

    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
    References
    Cell Assay
    [2]

    Purified microglia and preOLs are co-cultured using a Transwell culture system. Co-cultured cells are divided into three groups: control, lipopolysaccharide (LPS)-activated, and LPS plus Diphenyleneiodonium chloride. Microglia are cultured in Transwells over established preOL layers and exposed to either LPS (100 ng/mL), LPS+Diphenyleneiodonium chloride (10 μM) or untreated. The medium supernatants and cellular protein fractions from the co-cultures are then collected for further analysis after 48 h incubation[2].

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

    Animal Administration
    [1]

    The ddy mice (6 to 7 wk of age) are individually placed in transparent cages for 30 min before experiments. An intraplantar injection of 10 μL Diphenyleneiodonium chloride (2 mM, solvent: Kolliphor EL with 20% DMSO) is then injected into the right hindpaw with or without intraperitoneal administration with HC030031 (300 mg/kg at 0.5 h prior to injection of Diphenyleneiodonium chloride; solvent: saline with 0.5% methyl cellulose). The time spent licking or biting the injected paw is recorded for 45 min after injection[1].

    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 (sealed storage, away from moisture). 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
    DMSO 1 mM 3.1791 mL 15.8957 mL 31.7914 mL 79.4786 mL
    5 mM 0.6358 mL 3.1791 mL 6.3583 mL 15.8957 mL
    10 mM 0.3179 mL 1.5896 mL 3.1791 mL 7.9479 mL
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    • 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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