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  4. AY 9944

AY 9944 is a specific cholesterol biosynthesis inhibitor. AY 9944 inhibits the 7-dehydro cholesterol Δ7-reductase (DHCR7) enzyme with an IC50 of 13 nM. AY 9944 causes hypocholesterolemia and accumulation of 7DHC. At high doses, AY 9944 inhibits also in cultured embryos sterol Δ7-Δ8 isomerase, which causes the accumulation of cholest-8-en-3β-ol.

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AY 9944 Chemical Structure

AY 9944 Chemical Structure

CAS No. : 366-93-8

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Based on 4 publication(s) in Google Scholar

AY 9944 Related Antibodies

Top Publications Citing Use of Products

    AY 9944 purchased from MedChemExpress. Usage Cited in: Antiviral Res. 2022 Dec 15;209:105497.  [Abstract]

    Pretreatment with AY9944 (15, 30 µM), U18666A, lovastatin and MβCD for 2 h can all significantly reduce the level of EV-A71 VP1 protein in HCT-8 cell.

    AY 9944 purchased from MedChemExpress. Usage Cited in: Antiviral Res. 2022 Dec 15;209:105497.  [Abstract]

    AY9944 (30 μМ; 2 h) significantly inhibits the expression of EV-A71 VP1 protein in HCT-8 and RD cells.

    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    AY 9944 is a specific cholesterol biosynthesis inhibitor. AY 9944 inhibits the 7-dehydro cholesterol Δ7-reductase (DHCR7) enzyme with an IC50 of 13 nM. AY 9944 causes hypocholesterolemia and accumulation of 7DHC. At high doses, AY 9944 inhibits also in cultured embryos sterol Δ7-Δ8 isomerase, which causes the accumulation of cholest-8-en-3β-ol[1][2][3].

    IC50 & Target

    IC50: 13 nM (DHCR7)1
    In Vitro

    AY 9944 (1 μg/mL; 15 h) affects types of free sterol in keratinocytes[2].

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

    AY 9944 Related Antibodies

    Cell Viability Assay[2]

    Cell Line: Human foreskin keratinocytes
    Concentration: 1 μg/mL
    Incubation Time: 15 hours
    Result: Inhibited the synthesis of cholesterol and desmosterol, but increased 7-dehydrocholesterol and zymosterol synthesis.
    In Vivo

    AY 9944 (7.5 mg/kg; i.h. every 6 days once from postnatal day 2 to postnatal day 20) reduces brain cholesterol until 400 days after stop treatment[3].

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

    Animal Model: Long–Evans hooded rats[3].
    Dosage: 7.5 mg/kg
    Administration: Subcutaneous injection; 7.5 mg/kg every 6 days once; from postnatal day 2 to postnatal day 20
    Result: Reduced brain cholesterol and increased 7-dehydrocholesterol in all brain regions of rats till the treatment stopped for 400 days and showed a more severe effect on the change of sterols in plasma and liver of female rats.
    Molecular Weight

    464.30

    Formula

    C22H30Cl4N2
    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    ClC(C=CC=C1)=C1CNC[C@H](CC2)CC[C@@H]2CNCC3=C(C=CC=C3)Cl.[H]Cl.[H]Cl
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage

    4°C, sealed storage, away from moisture

    *In solvent : -80°C, 2 years; -20°C, 1 year (sealed storage, away from moisture)

    Solvent & Solubility
    In Vitro: 

    DMSO : 5 mg/mL (10.77 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : 5 mg/mL (10.77 mM; Need ultrasonic)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.1538 mL 10.7689 mL 21.5378 mL
    5 mM 0.4308 mL 2.1538 mL 4.3076 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    * Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

    • 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)

    C1

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    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.
    Calculation results:
    Working solution concentration: mg/mL
    Purity & Documentation

    Purity: 99.71%

    COA (245 KB) LCMS (260 KB)

    Handling Instructions (2659 KB)
    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 (sealed storage, away from moisture). 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 / H2O 1 mM 2.1538 mL 10.7689 mL 21.5378 mL 53.8445 mL
    5 mM 0.4308 mL 2.1538 mL 4.3076 mL 10.7689 mL
    10 mM 0.2154 mL 1.0769 mL 2.1538 mL 5.3844 mL

    * Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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    AY 9944 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:

    AY 9944366-93-8AY9944AY-9944Otherscholesterolreductasebiosynthesis7DHCaccumulationΔ7-Δ8isomerasehypocholesterolemiaInhibitorinhibitorinhibit

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