1. Immunology/Inflammation
  2. Osteopontin
  3. OPN-IN-1

OPN-IN-1 is an osteopontin (OPN) expression inhibitor. OPN-IN-1 has potential anti-breast cancer cell metastasis activity and can be used in the study of cancer.

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

CAS No. : 2257492-95-6

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
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Customer Review

Based on 9 publication(s) in Google Scholar

Top Publications Citing Use of Products

    OPN-IN-1 purchased from MedChemExpress. Usage Cited in: Cancer Commun (Lond). 2025 Dec 26.

    OPNi-1 (50 μM, 24 h) decreased the protein expression of YKL40, EFEMP-1, and CD44 in BNI_2-4 cells after culture with hypoxic conditioned medium derived from THP-1 and U937.

    OPN-IN-1 purchased from MedChemExpress. Usage Cited in: Cancer Commun (Lond). 2025 Dec 26.

    OPNi-1 (50 μM, 48 h) decreased cell migration in BNI_2-4 cells after culture with hypoxic conditioned medium derived from THP-1 (L) and U937.

    OPN-IN-1 purchased from MedChemExpress. Usage Cited in: Cancer Commun (Lond). 2025 Dec 26.

    OPNi-1 (50 μM, 48 h) inhibited cell growth of BNI_2-4 cells following culture with hypoxic conditioned medium from THP-1 (L) and U937.

    OPN-IN-1 purchased from MedChemExpress. Usage Cited in: Cancer Commun (Lond). 2025 Dec 26.

    OPNi-1 (0.5 mg/kg, intraperitoneal injections, 5 consecutive days followed by a 2-day drug holiday, and repeat the cycle) inhibited tumor growth compared with the control treatment in an orthotopic mouse model of GBM using GL261 cells in C57BL/6J mice.

    OPN-IN-1 purchased from MedChemExpress. Usage Cited in: Cancer Commun (Lond). 2025 Dec 26.

    OPNi-1 (0.5 mg/kg, intraperitoneal injections, 5 consecutive days followed by a 2-day drug holiday, and repeat the cycle) reduced PD-L1 expression in an orthotopic mouse model of GBM using GL261 cells in C57BL/6J mice.
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    OPN-IN-1 is an osteopontin (OPN) expression inhibitor. OPN-IN-1 has potential anti-breast cancer cell metastasis activity and can be used in the study of cancer[1].

    In Vitro

    OPN-IN-1 (Compound 11) (50 μM; 24 h) can inhibit the expression of osteopontin (OPN) in MDA-MB-435 cells[1].

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

    Western Blot Analysis[1]

    Cell Line: MDA-MB-435
    Concentration: 50 μM
    Incubation Time: 24 h
    Result: Decreased OPN expression by ~ 0.3 fold.
    Molecular Weight

    455.55

    Formula

    C25H33N3O5

    CAS No.
    Appearance

    Solid

    Color

    White to yellow

    SMILES

    [H][C@@]12CC[C@]3(OO[C@]14[C@@H](O3)OC([C@@H]([C@@]4(CC[C@H]2C)[H])C)OCC5=CN(N=N5)CC6=CC=CC=C6)C

    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 (219.51 mM; Need ultrasonic; 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 2.1951 mL 10.9757 mL 21.9515 mL
    5 mM 0.4390 mL 2.1951 mL 4.3903 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)

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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: ≥ 2.5 mg/mL (5.49 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (5.49 mM); Suspended solution

      This protocol yields a suspended solution of ≥ 2.5 mg/mL (saturation unknown). Suspended solution can be used for oral and intraperitoneal injection.

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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

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    (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:
    %
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    %
    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: 99.98%

    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 2.1951 mL 10.9757 mL 21.9515 mL 54.8787 mL
    5 mM 0.4390 mL 2.1951 mL 4.3903 mL 10.9757 mL
    10 mM 0.2195 mL 1.0976 mL 2.1951 mL 5.4879 mL
    15 mM 0.1463 mL 0.7317 mL 1.4634 mL 3.6586 mL
    20 mM 0.1098 mL 0.5488 mL 1.0976 mL 2.7439 mL
    25 mM 0.0878 mL 0.4390 mL 0.8781 mL 2.1951 mL
    30 mM 0.0732 mL 0.3659 mL 0.7317 mL 1.8293 mL
    40 mM 0.0549 mL 0.2744 mL 0.5488 mL 1.3720 mL
    50 mM 0.0439 mL 0.2195 mL 0.4390 mL 1.0976 mL
    60 mM 0.0366 mL 0.1829 mL 0.3659 mL 0.9146 mL
    80 mM 0.0274 mL 0.1372 mL 0.2744 mL 0.6860 mL
    100 mM 0.0220 mL 0.1098 mL 0.2195 mL 0.5488 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:
    OPN-IN-1
    Cat. No.:
    HY-146064
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