1. Apoptosis Autophagy Metabolic Enzyme/Protease
  2. TNF Receptor Autophagy Tyrosinase
  3. Taxifolin

Taxifolin  (Synonyms: (+)-Dihydroquercetin; (+)-Taxifolin)

Cat. No.: HY-N0136 Purity: 99.92%
Handling Instructions Technical Support

Taxifolin ((+)-Dihydroquercetin) exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity.

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

CAS No. : 480-18-2

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Customer Review

Based on 27 publication(s) in Google Scholar

Other Forms of Taxifolin:

Top Publications Citing Use of Products
Bio/Physico-chemical Assay
Cell Proliferation/Viability Assay
Cell Imaging/Staining
IHC
IF
WB

    Taxifolin purchased from MedChemExpress. Usage Cited in: Front Immunol. 2025 Mar 17:16:1532336.  [Abstract]

    After infection of MDCK cells with H1N1-UI182 at an MOI of 0.01, the cells were treated with Quercetin (10 µM), Taxifolin (50 µM), Miquelianin (100 µM), and Baloxavir (10 µM) for 48 h. Nuclei were stained with DAPI, and infected cells were detected by NP-specific immunofluorescence staining (scale bar: 100 µm).

    Taxifolin purchased from MedChemExpress. Usage Cited in: Vet Sci. 2024 Mar 30;11(4):156.  [Abstract]

    IPEC-J2 cells were treated with Taxifolin (0, 50, 100, 150, 300, and 400 μM) for 24 h. Cell viability was determined using the CCK-8 assay.

    Taxifolin purchased from MedChemExpress. Usage Cited in: Vet Sci. 2024 Mar 30;11(4):156.  [Abstract]

    After pretreating the cells with 150 μM Taxifolin (0-150 μM) for 24 h, they were exposed to 0.5 μg/mL DON for another 24 h. Then, cell morphology was evaluated by capturing images of the cells. The cyan arrows indicate shrunken or fragmentated cells; the yellow arrows indicate normal or dividing cells. The magnification is 40×.

    Taxifolin purchased from MedChemExpress. Usage Cited in: Vet Sci. 2024 Mar 30;11(4):156.  [Abstract]

    Representative immunofluorescence images of the control, Taxifolin, DON, and Taxifolin (0-150 μM) + DON groups labeled with DAPI (blue) and anti-Ki67 antibody (red).

    Taxifolin purchased from MedChemExpress. Usage Cited in: Vet Sci. 2024 Mar 30;11(4):156.  [Abstract]

    Effect of Taxifolin on intracellular ROS levels. Fluorescence values were determined using a fluorescence microplate. Data are shown as mean ± SEM (n = 3). Control: control group; 150 μM TA: 150 μM Taxifolin group; DON: 0.5 μg/mL DON group; 150 μM Taxifolin + DON: 150 μM Taxifolin + 0.5 μg/mL DON group.

    Taxifolin purchased from MedChemExpress. Usage Cited in: Molecules. 2021 Mar 5;26(5):1409.

    Time course of SARS-CoV-2 Mpro enzymatic activity in response to inhibitory compounds. Black, green, red, and yellow dots represent control, 100 µM Taxifolin, 95.6 µM Silybin A + Silybin B, and 100 µM GC376, respectively. Reported traces are the average of three experiments.

    Taxifolin purchased from MedChemExpress. Usage Cited in: Appl Microbiol Biotechnol. 2018 Feb;102(3):1443-1453.  [Abstract]

    Dihydroquercetin relieves APAP-induced necrosis and suppressed ERK/JNK stress responses. Western Blot analysis for phosphor-JNK1/2, β-Actin as a lading control.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Taxifolin ((+)-Dihydroquercetin) exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity[1][2][3].

    IC50 & Target

    IC50: 193.3 μM (Collagenase)[1]
    Tyrosinase[1]

    Cellular Effect
    Cell Line Type Value Description References
    BJ EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human BJ cells assessed as viable cells after 72 hrs by calcein AM assay
    Cytotoxicity against human BJ cells assessed as viable cells after 72 hrs by calcein AM assay
    [PMID: 20192247]
    CCRF-CEM EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human CEM cells assessed as viable cells after 72 hrs by calcein AM assay
    Cytotoxicity against human CEM cells assessed as viable cells after 72 hrs by calcein AM assay
    [PMID: 20192247]
    H9 EC50
    9.8 μg/mL
    Compound: 3
    Inhibition of HIV-1 replication in H9 (human lymphoma) cells.
    Inhibition of HIV-1 replication in H9 (human lymphoma) cells.
    10.1016/0960-894X(96)00095-9
    H9 IC50
    9.8 μg/mL
    Compound: 3
    Inhibition of uninfected H9 lymphocytic cell growth
    Inhibition of uninfected H9 lymphocytic cell growth
    10.1016/0960-894X(96)00095-9
    HEK293 EC50
    670.66 μM
    Compound: DHQ
    Cytotoxicity in HEK293 cells assessed as reduction in cell survival incubated for 48 hrs by MTT assay
    Cytotoxicity in HEK293 cells assessed as reduction in cell survival incubated for 48 hrs by MTT assay
    [PMID: 30108751]
    HL-60 IC50
    10 ng/mL
    Compound: Taxifolin
    Growth inhibition of human HL60 cells after 72 hrs by MTT assay
    Growth inhibition of human HL60 cells after 72 hrs by MTT assay
    [PMID: 31398616]
    HT-1080 IC50
    > 10 μM
    Compound: Taxifolin
    Anti-ferroptotic activity against Erastin-induced human HT-1080 cells assessed as inhibition of ferroptosis incubated for 72 hrs by CCK-8 assay
    Anti-ferroptotic activity against Erastin-induced human HT-1080 cells assessed as inhibition of ferroptosis incubated for 72 hrs by CCK-8 assay
    [PMID: 38996382]
    HUVEC IC50
    12 μM
    Compound: 43, taxifolin
    Inhibition of NADPH oxidase in Homo sapiens (human) HUVEC cells
    Inhibition of NADPH oxidase in Homo sapiens (human) HUVEC cells
    10.1007/s00044-012-0353-y
    HeLa EC50
    125.31 μM
    Compound: DHQ
    Cytotoxicity in human HeLa cells assessed as reduction in cell survival incubated for 48 hrs by MTT assay
    Cytotoxicity in human HeLa cells assessed as reduction in cell survival incubated for 48 hrs by MTT assay
    [PMID: 30108751]
    HeLa EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human HeLa cells assessed as viable cells after 72 hrs by calcein AM assay
    Cytotoxicity against human HeLa cells assessed as viable cells after 72 hrs by calcein AM assay
    [PMID: 20192247]
    L929 EC50
    200 μM
    Compound: taxifolin
    Inhibition of recombinant human TNF-alpha-induced cytotoxicity of mouse L929 cells assessed as survivality preincubated for 15 mins before TNFalpha addition measured after 24 hrs by crystal violet staining
    Inhibition of recombinant human TNF-alpha-induced cytotoxicity of mouse L929 cells assessed as survivality preincubated for 15 mins before TNFalpha addition measured after 24 hrs by crystal violet staining
    [PMID: 9287415]
    L929 EC50
    240 μM
    Compound: taxifolin
    Inhibition of recombinant human TNF-alpha-induced cytotoxicity of mouse L929 cells assessed as survivality preincubated for 15 mins before TNFalpha addition measured after 24 hrs by [methyl-3H]thymidine incorporation assay
    Inhibition of recombinant human TNF-alpha-induced cytotoxicity of mouse L929 cells assessed as survivality preincubated for 15 mins before TNFalpha addition measured after 24 hrs by [methyl-3H]thymidine incorporation assay
    [PMID: 9287415]
    MCF7 EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human MCF7 cells assessed as viable cells after 72 hrs by calcein AM assay
    Cytotoxicity against human MCF7 cells assessed as viable cells after 72 hrs by calcein AM assay
    [PMID: 20192247]
    MT4 CC50
    25.4 μg/mL
    Compound: 14
    Cytotoxicity against human MT4 cells by MTT assay
    Cytotoxicity against human MT4 cells by MTT assay
    [PMID: 10425115]
    MT4 IC50
    > 25.4 μg/mL
    Compound: 14
    Antiviral activity against HIV infected in human MT4 cells assessed as inhibition of virus-induced cytopathic effect by MTT assay
    Antiviral activity against HIV infected in human MT4 cells assessed as inhibition of virus-induced cytopathic effect by MTT assay
    [PMID: 10425115]
    Neutrophil IC50
    15.3 μM
    Compound: 5c
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of HOCl-induced oxidation of APF after 6 mins by fluorescence assay
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of HOCl-induced oxidation of APF after 6 mins by fluorescence assay
    [PMID: 23871908]
    Neutrophil IC50
    15.5 μM
    Compound: 5c
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of superoxide anion radical-induced lucigenin oxidation incubated for 5 mins prior to PMA challenge by chemiluminescence assay
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of superoxide anion radical-induced lucigenin oxidation incubated for 5 mins prior to PMA challenge by chemiluminescence assay
    [PMID: 23871908]
    Neutrophil IC50
    41.3 μM
    Compound: 5c
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of H2O2-induced oxidation of amplex red incubated for 5 mins prior to PMA challenge by fluorescence assay
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of H2O2-induced oxidation of amplex red incubated for 5 mins prior to PMA challenge by fluorescence assay
    [PMID: 23871908]
    Neutrophil IC50
    53.5 μM
    Compound: 5c
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of ROS-induced luminol oxidation incubated for 5 mins prior to PMA challenge by chemiluminescence assay
    Inhibition of oxidative burst in PMA-stimulated human neutrophils assessed as inhibition of ROS-induced luminol oxidation incubated for 5 mins prior to PMA challenge by chemiluminescence assay
    [PMID: 23871908]
    RAW264.7 IC50
    81.6 μM
    Compound: 10
    Inhibition of LPS-induced NO production in mouse RAW264.7 cells by Griess reagent based assay
    Inhibition of LPS-induced NO production in mouse RAW264.7 cells by Griess reagent based assay
    [PMID: 32118424]
    RPMI-8226 EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human RPMI8226 cells assessed as viable cells after 72 hrs by calcein AM assay
    Cytotoxicity against human RPMI8226 cells assessed as viable cells after 72 hrs by calcein AM assay
    [PMID: 20192247]
    Sf9 IC50
    15.7 μM
    Compound: 4
    Inhibition of N-terminal GST-His-tagged c-KIT (544 to 976 amino acids) D816V mutant (unknown origin) expressed in Sf9 insect cells using poly[Glu:Tyr] (4:1) as substrate preincubated for 20 mins followed by [33P-gamma]ATP addition and subsequent inhibition for 2 hrs by radiometric assay
    Inhibition of N-terminal GST-His-tagged c-KIT (544 to 976 amino acids) D816V mutant (unknown origin) expressed in Sf9 insect cells using poly[Glu:Tyr] (4:1) as substrate preincubated for 20 mins followed by [33P-gamma]ATP addition and subsequent inhibition for 2 hrs by radiometric assay
    [PMID: 26807861]
    THP-1 EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human THP1 cells after 72 hrs by erythosin B staining method
    Cytotoxicity against human THP1 cells after 72 hrs by erythosin B staining method
    [PMID: 20192247]
    U-266 EC50
    > 10 μM
    Compound: 1
    Cytotoxicity against human U266 cells assessed as viable cells after 72 hrs by calcein AM assay
    Cytotoxicity against human U266 cells assessed as viable cells after 72 hrs by calcein AM assay
    [PMID: 20192247]
    In Vitro

    This is confirmed by the investigation of pure Taxifolin and (+)-Catechin against collagenase activity. Taxifolin exhibits significant inhibitory activity with an IC50 value of 193.3 μM while (+)-Catechin is not active[1].
    Taxifolin is a ubiquitous bioactive constituent of foods and herbs. Taxifolin (dihydroquercetin) is a bioactive flavanonol commonly found in grapes, citrus fruits, onions, green tea, olive oil, wine, and many other foods, as well as several herbs (such as milk thistle, French maritime bark, Douglas fir bark, and Smilacis Glabrae Rhizoma)[3].

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

    Clinical Trial
    Molecular Weight

    304.25

    Formula

    C15H12O7

    CAS No.
    Appearance

    Solid

    Color

    Off-white to yellow

    SMILES

    O=C1[C@H](O)[C@@H](C2=CC=C(O)C(O)=C2)OC3=CC(O)=CC(O)=C13

    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 6 months
    -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 100 mg/mL (328.68 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 3.2868 mL 16.4339 mL 32.8677 mL
    5 mM 0.6574 mL 3.2868 mL 6.5735 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
    =
    Concentration
    ×
    Volume
    ×
    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: ≥ 2.75 mg/mL (9.04 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.75 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (27.5 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: ≥ 2.75 mg/mL (9.04 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.75 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (27.5 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: 99.92%

    References
    Animal Administration
    [3]

    Rats[3]
    Twelve male Sprague-Dawley rats (weighing 180-220 g) are used. The rats are randomly divided into two groups (six rats per group), a drug group and a blank group. Taxifolin is suspended in 0.5% CMC-Na solution and orally administered to the drug group at a dose of 200 mg/kg body weight, while blank group rats are orally administered 0.5% CMC-Na solution at the same volume. All rats are dosed once a day (at 9:00 a.m.) for 3 days.

    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, 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 3.2868 mL 16.4339 mL 32.8677 mL 82.1693 mL
    5 mM 0.6574 mL 3.2868 mL 6.5735 mL 16.4339 mL
    10 mM 0.3287 mL 1.6434 mL 3.2868 mL 8.2169 mL
    15 mM 0.2191 mL 1.0956 mL 2.1912 mL 5.4780 mL
    20 mM 0.1643 mL 0.8217 mL 1.6434 mL 4.1085 mL
    25 mM 0.1315 mL 0.6574 mL 1.3147 mL 3.2868 mL
    30 mM 0.1096 mL 0.5478 mL 1.0956 mL 2.7390 mL
    40 mM 0.0822 mL 0.4108 mL 0.8217 mL 2.0542 mL
    50 mM 0.0657 mL 0.3287 mL 0.6574 mL 1.6434 mL
    60 mM 0.0548 mL 0.2739 mL 0.5478 mL 1.3695 mL
    80 mM 0.0411 mL 0.2054 mL 0.4108 mL 1.0271 mL
    100 mM 0.0329 mL 0.1643 mL 0.3287 mL 0.8217 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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    Product Name:
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