2. Immunology/Inflammation
  3. Aryl Hydrocarbon Receptor
  4. FICZ

FICZ  (Synonyms: 6-Formylindolo[3,2-b]carbazole)

Cat. No.: HY-12451 Purity: 98.80%
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FICZ is a potent aryl hydrocarbon receptor (AhR) agonist with a Kd of 70 pM.

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

CAS No. : 172922-91-7

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

Based on 29 publication(s) in Google Scholar

FICZ Related Antibodies

Top Publications Citing Use of Products

29 Publications Citing Use of MCE FICZ

RT-PCR
WB
IHC
In Vivo Efficacy Study
Histological Imaging/Staining
ELISA

    FICZ purchased from MedChemExpress. Usage Cited in: Cell Mol Immunol. 2025 Mar;22(3):300-315.  [Abstract]

    RT-qPCR results of the indicated genes in whole skin on day 11 of SSKO (K14-Cre;Ovol1f/-) mice and control littermates mice treated with FICZ (i.p.; 0.1 mg/kg ; daily for 10 days). Data are presented as the means ± SEMs. n = 4 mice per group.

    FICZ purchased from MedChemExpress. Usage Cited in: Cell Mol Immunol. 2025 Mar;22(3):300-315.  [Abstract]

    Time course showing TEWL measurements in SSKO (K14-Cre;Ovol1f/-) mice and control littermates mice treated with FICZ (i.p.; 0.1 mg/kg ; daily for 10 days). n = 5–9 mice per group.

    FICZ purchased from MedChemExpress. Usage Cited in: Cell Mol Immunol. 2025 Mar;22(3):300-315.  [Abstract]

    Representative skin histology (H&E staining) on day 11 of SSKO (K14-Cre;Ovol1f/-) mice and control littermates mice treated with FICZ (i.p.; 0.1 mg/kg ; daily for 10 days). Scale bar = 100 μm.

    FICZ purchased from MedChemExpress. Usage Cited in: Theranostics. 2021 Aug 11;11(18):8797-8812.

    N2a cells were treated with DMSO, Diosmin (Dio; 40 μM), FICZ (250 nM), Indole-3-acetamide (I3C; 10 μM) or L-KN (3 μM) for 12 h. Whole cell extracts were examined by western blotting with the indicated antibodies. NEP expression was adjusted to that of β-actin, which was used as the loading control. n = 3.

    FICZ purchased from MedChemExpress. Usage Cited in: Theranostics. 2021 Aug 11;11(18):8797-8812.

    N2a-APP cells were treated with Diosmin (Dio; 80 μM), FICZ (250 nM), L-KN (3 μM) or Indole-3-acetamide (I3C; 10 μM) with or without SR1 (2 μM) or Sacubitril (Sac; 1 μM) for 24 h, the supernatant was collected and the Aβ42 levels were determined by ELISA.

    FICZ purchased from MedChemExpress. Usage Cited in: Theranostics. 2020 Oct 25;10(26):12011-12025.  [Abstract]

    IHC staining for AhR, IRF1, and HIF-1α in the kidneys of FICZ (i.p.; 50-mg/kg/d for 10 days)-treated mice with CaOx nephrocalcinosis (200×; scale bar: 20 µm).

    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    FICZ is a potent aryl hydrocarbon receptor (AhR) agonist with a Kd of 70 pM.

    Cellular Effect
    Cell Line Type Value Description References
    HepG2 EC50
    2.04 nM
    Compound: 2; FICZ
    Agonist activity at AhR in human HepG2 cells assessed as induction of CYP1A1 expression after 24 hrs by ethoxyresorufin-O-deethylase assay
    Agonist activity at AhR in human HepG2 cells assessed as induction of CYP1A1 expression after 24 hrs by ethoxyresorufin-O-deethylase assay
    		[PMID: 31952965]
    In Vitro

    FICZ (0.01 nM-1 µM) alone or in combination with 50 nM MNF induces sustained CYP1A1 activity and leads to oxidative stress and activation of apoptosis via a mitochondrial-dependent pathway. In HepG2 cells, FICZ stimulates cell growth at low concentrations but inhibits cell growth at high concentrations[1]. FICZ (10,000-30,000 nM) significantly decreases CEH viability with an estimated LC50 (95% confidence intervals) of 14,000 nM. FICZ shows concentration-dependent effects on EROD activity in CEH cultures, with the mean EC50 values at 3, 8, and 24 h of 0.016 nM, 0.80 nM, and 11 nM, respectively[2]. FICZ treatment increases transcript expression of CYP1A1 in a dose-dependent manner in both the parental iPSC line and the CYP1A1 targeted clone[3]. CYP1 inhibition in the presence of FICZ results in enhanced AHR activation, suggesting that FICZ accumulates in the cell when its metabolism is blocked. CYP1 enzymes plays a role in regulating biological effects of FICZ[4].
    Nuclear export and degradation of the AHR protein are two additional steps in the AHR-mediated signal transduction pathway[5].
    Exposure to AhR agonists causes AhR-expressing cells to downregulate the receptor through the ubiquitin/proteasome degradation pathway[6].

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

    FICZ Related Antibodies
    Molecular Weight

    284.31

    Formula

    C19H12N2O
    CAS No.
    Appearance

    Solid

    Color

    Light yellow to yellow

    SMILES

    O=CC1=C2C(NC3=C2C=CC=C3)=CC4=C1NC5=C4C=CC=C5
    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 (35.17 mM; Need ultrasonic and warming; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 3.5173 mL 17.5864 mL 35.1729 mL
    5 mM 0.7035 mL 3.5173 mL 7.0346 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.

    • Molarity Calculator

    • Dilution Calculator

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

    Mass
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    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:  5% DMSO    40% PEG300    5% Tween-80    50% Saline

      Solubility: 1.11 mg/mL (3.90 mM); Suspended solution; Need ultrasonic

    • Protocol 2

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

      Solubility: ≥ 0.83 mg/mL (2.92 mM); Clear solution

      This protocol yields a clear solution of ≥ 0.83 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 (8.3 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:  15% Solutol HS 15    10% Cremophor EL    35% PEG400    40% Water

      Solubility: 3.33 mg/mL (11.71 mM); Suspended solution; Need ultrasonic

    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: 99.42%

    SDS (393 KB)

    COA (255 KB) RP-HPLC (189 KB) LCMS (189 KB)

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

    The cell viability of CEH treated with FICZ or TCDD is studied with the untreated cells (used as a live cell control) and sodium hypochlorite (5%)-treated cells (used as a dead cell control). This assay is based upon the bioluminescent measurement of adenosine triphosphate (ATP) that is present in all metabolically active cells. Luciferase is utilized in this method to catalyze the formation of light from ATP and luciferin. CEH are lysed 24 h after dosing and the luminescence emitted from the ATP-dependent oxidation of luciferin is measured with a LuminoSkan Ascent luminometer.

    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 1 mM 3.5173 mL 17.5864 mL 35.1729 mL 87.9322 mL
    5 mM 0.7035 mL 3.5173 mL 7.0346 mL 17.5864 mL
    10 mM 0.3517 mL 1.7586 mL 3.5173 mL 8.7932 mL
    15 mM 0.2345 mL 1.1724 mL 2.3449 mL 5.8621 mL
    20 mM 0.1759 mL 0.8793 mL 1.7586 mL 4.3966 mL
    25 mM 0.1407 mL 0.7035 mL 1.4069 mL 3.5173 mL
    30 mM 0.1172 mL 0.5862 mL 1.1724 mL 2.9311 mL
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    FICZ 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:

    FICZ172922-91-76-Formylindolo[3,2-b]carbazoleAryl Hydrocarbon ReceptorAhRInhibitorinhibitorinhibit

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