1. Metabolic Enzyme/Protease
  2. Methylenetetrahydrofolate Dehydrogenase (MTHFD)
  3. DS18561882

DS18561882 is a highly potent, isozyme-selective methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) inhibitor with an IC50 value of 0.0063 μM. DS18561882 also has inhibitory effect on MTHFD1 (IC50=0.57 μM). DS18561882 exhibits a good oral pharmacokinetic profile.

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

CAS No. : 2227149-22-4

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
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10 mg In-stock
25 mg In-stock
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Customer Review

Based on 21 publication(s) in Google Scholar

Top Publications Citing Use of Products

    DS18561882 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Oct 20;16(1):9250.  [Abstract]

    Western blot analysis of collagen and α-smooth muscle actin protein expression in human lung fibroblasts (HLFs) treated with TGF-β for the indicated intervals in the presence or absence of DS18561882 (5 μM; 24-48 h).

    DS18561882 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Oct 8;16(1):8932.  [Abstract]

    Effect of MTHFD2 inhibitors on cisplatin-mediated apoptotic cell death. Cells were treated with either 10 μM DS18561882 and sublethal doses of cisplatin for 48 h.

    DS18561882 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Oct 20;16(1):9250.  [Abstract]

    Histological analysis of mouse lung tissue from DS18561882 (100 mg/kg; i.p.) or vehicle treated mice on Day 21 after bleomycin instillation. The results showed that DS18561882 significantly alleviated the degree of pulmonary fibrosis in mice.

    DS18561882 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Oct 8;16(1):8932.  [Abstract]

    Effect of MTHFD2 inhibitors on cisplatin-mediated cell viability. Cells were treated with either 10 μM DS18561882 and sublethal doses of cisplatin for 48 h.

    DS18561882 purchased from MedChemExpress. Usage Cited in: Cell Stem Cell. 2024 Aug 21:S1934-5909(24)00285-6.  [Abstract]

    HSC numbers per well following HSC culture in CM or SGFM supplemented with or without DS18561882 (50 μM; 10 days) (n = 3).

    DS18561882 purchased from MedChemExpress. Usage Cited in: Cell Stem Cell. 2024 Aug 21:S1934-5909(24)00285-6.  [Abstract]

    Ferroptosis susceptibility analysis of HSCs following culture in CM or SGFM supplemented with or without DS18561882 (50 μM; 10 days) (n = 3).
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    DS18561882 is a highly potent, isozyme-selective methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) inhibitor with an IC50 value of 0.0063 μM. DS18561882 also has inhibitory effect on MTHFD1 (IC50=0.57 μM). DS18561882 exhibits a good oral pharmacokinetic profile[1].

    IC50 & Target

    IC50: 0.0063 μM (MTHFD2); 0.57 μM (MTHFD1)[1]

    In Vitro

    DS18561882 (0-150 nM) gives the lowest GI50 value (140 nM) against the MDA-MB-231 cell line[1].

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

    In Vivo

    DS18561882 (oral administration; 30, 100 or 300 mg/kg; twice daily) inhibits tumor growth inhibition with a dose-dependent manner, the tumor is completely inhibited (TGI: 67%) at the dose of 300 mg/kg in mice[1].
    DS18561882 (oral administration; 10, 30, 100, or 300 mg/kg) has a good oral pharmacokinetic profile, including ACU (64.6, 264, 726 μg.h/ml ); Cmax (11.4, 56.5, 90.1 μg/ml); t1/2 (2.21, 2.16, 2.32 hours) for 30 mg/kg; 100mg/kg; 200 mg/kg, respectively[1].
    DS18561882 is suspended in a 0.5% (w/v) methyl cellulose 400 solution in this article[1].

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

    Animal Model: Five week old female BALB/cAJcl-nu/nu mice with MDA-MB-231 luc tumor cells (4 × 106 cells/mouse)[1]
    Dosage: 30, 100 or 300 mg/kg
    Administration: Oral administration; 30, 100 or 300 mg/kg; twice daily; until day 11
    Result: Suppressed tumor growth in a dose-dependent manner.
    Molecular Weight

    608.63

    Formula

    C28H31F3N4O6S

    CAS No.
    Appearance

    Solid

    Color

    White to yellow

    SMILES

    CS(=O)(NC1=CC=C(C(N2CCC(C3=CC=C(N4C[C@H](C)N(C)CC4)C(C)=C3O5)=C(C5=O)C2)=O)C=C1OC(F)(F)F)=O

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    4°C, stored under nitrogen

    *In solvent : -80°C, 2 years; -20°C, 1 year (stored under nitrogen)

    Solvent & Solubility
    In Vitro: 

    DMSO : 100 mg/mL (164.30 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 1.6430 mL 8.2152 mL 16.4303 mL
    5 mM 0.3286 mL 1.6430 mL 3.2861 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 (stored under nitrogen). 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
    =
    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

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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: 2.5 mg/mL (4.11 mM); Clear solution; Need ultrasonic

      This protocol yields a clear solution of 2.5 mg/mL.

      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 (4.11 mM); Clear solution; Need ultrasonic

      This protocol yields a clear solution of 2.5 mg/mL.

      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

    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).

    *In solvent : -80°C, 2 years; -20°C, 1 year (stored under nitrogen)

    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: 99.87%

    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 (stored under nitrogen). 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 1.6430 mL 8.2152 mL 16.4303 mL 41.0759 mL
    5 mM 0.3286 mL 1.6430 mL 3.2861 mL 8.2152 mL
    10 mM 0.1643 mL 0.8215 mL 1.6430 mL 4.1076 mL
    15 mM 0.1095 mL 0.5477 mL 1.0954 mL 2.7384 mL
    20 mM 0.0822 mL 0.4108 mL 0.8215 mL 2.0538 mL
    25 mM 0.0657 mL 0.3286 mL 0.6572 mL 1.6430 mL
    30 mM 0.0548 mL 0.2738 mL 0.5477 mL 1.3692 mL
    40 mM 0.0411 mL 0.2054 mL 0.4108 mL 1.0269 mL
    50 mM 0.0329 mL 0.1643 mL 0.3286 mL 0.8215 mL
    60 mM 0.0274 mL 0.1369 mL 0.2738 mL 0.6846 mL
    80 mM 0.0205 mL 0.1027 mL 0.2054 mL 0.5134 mL
    100 mM 0.0164 mL 0.0822 mL 0.1643 mL 0.4108 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:
    DS18561882
    Cat. No.:
    HY-130251
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