1. Neuronal Signaling Stem Cell/Wnt
  2. γ-secretase
  3. E 2012

E 2012 is a potent gamma (γ) secretase modulator without affecting Notch processing. E 2012 inhibits 3β-hydroxysterol Δ24-reductase (DHCR24) at the final step in the cholesterol biosynthesis. E 2012 aims at Alzheimer's disease by reduction of amyloid β-42, and induces cataract following repeated doses in the rat.

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E 2012 Chemical Structure

E 2012 Chemical Structure

CAS No. : 870843-42-8

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10 mM * 1 mL in DMSO
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Customer Review

Based on 7 publication(s) in Google Scholar

Top Publications Citing Use of Products

    E 2012 purchased from MedChemExpress. Usage Cited in: Cell Rep. 2015 May 5;11(5):689-96.  [Abstract]

    Western blots performed on soluble protein extracts of neurons following treatment with the indicated compounds. Protein extraction performed at day 90 post-neural induction, after 30 days of drug treatment. DAPT treatment (GSI) increases both total and phosphorylated tau expression in the majority of genotypes, assessed at multiple epitopes. By contrast, E2012 (GSM) reduces total tau expression and its phosphorylation in all genotypes assayed, with particularly pronounced effects in Ts21 neuron
    • Biological Activity

    • Purity & Documentation

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    Description

    E 2012 is a potent gamma (γ) secretase modulator without affecting Notch processing. E 2012 inhibits 3β-hydroxysterol Δ24-reductase (DHCR24) at the final step in the cholesterol biosynthesis. E 2012 aims at Alzheimer's disease by reduction of amyloid β-42, and induces cataract following repeated doses in the rat[1].

    In Vitro

    E2012 has concentration-dependent inhibitory effects on cholesterol biosynthesis in primary culture of rat hepatocytes and HepG2 cells with IC50s of 11.0, and 15.1 nM, respectively[1].

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

    In Vivo

    In vivo lenticular concentration of E 2012 after 13-week repeated dose with cataract was well above those where inhibition is observed in vitro. E 2012 induces cataract in the rat by inhibiting DHCR24 at the final step of cholesterol synthesis with associated elevation in desmosterol within the lens, preceded by desmosterol changes that would serve as a predictive safety biomarker for lenticular opacity[2].

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

    Molecular Weight

    419.49

    Formula

    C25H26FN3O2

    CAS No.
    Appearance

    Solid

    Color

    Light yellow to yellow

    SMILES

    O=C(N([C@H](C1=CC=C(C=C1)F)C)CCC/2)C2=C\C3=CC=C(N4C=NC(C)=C4)C(OC)=C3

    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 : 50 mg/mL (119.19 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 2.3838 mL 11.9192 mL 23.8385 mL
    5 mM 0.4768 mL 2.3838 mL 4.7677 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)

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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 (5.96 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 (5.96 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:

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    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
    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 2.3838 mL 11.9192 mL 23.8385 mL 59.5962 mL
    5 mM 0.4768 mL 2.3838 mL 4.7677 mL 11.9192 mL
    10 mM 0.2384 mL 1.1919 mL 2.3838 mL 5.9596 mL
    15 mM 0.1589 mL 0.7946 mL 1.5892 mL 3.9731 mL
    20 mM 0.1192 mL 0.5960 mL 1.1919 mL 2.9798 mL
    25 mM 0.0954 mL 0.4768 mL 0.9535 mL 2.3838 mL
    30 mM 0.0795 mL 0.3973 mL 0.7946 mL 1.9865 mL
    40 mM 0.0596 mL 0.2980 mL 0.5960 mL 1.4899 mL
    50 mM 0.0477 mL 0.2384 mL 0.4768 mL 1.1919 mL
    60 mM 0.0397 mL 0.1987 mL 0.3973 mL 0.9933 mL
    80 mM 0.0298 mL 0.1490 mL 0.2980 mL 0.7450 mL
    100 mM 0.0238 mL 0.1192 mL 0.2384 mL 0.5960 mL
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    E 2012 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.

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    Product Name:
    E 2012
    Cat. No.:
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