2. Membrane Transporter/Ion Channel Neuronal Signaling
  3. iGluR
  4. Naspm

Naspm  (Synonyms: 1-Naphthylacetyl spermine)

Cat. No.: HY-12506 Purity: 96.30%
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Naspm (1-Naphthyl acetyl spermine), a synthetic analogue of Joro spider toxin, is a calcium permeable AMPA (CP-AMPA) receptors antagonist.

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

Naspm Chemical Structure

Naspm Chemical Structure

CAS No. : 122306-11-0

Size Price Stock Quantity
Liquid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 106 In-stock
Solution
10 mM * 1 mL in DMSO USD 106 In-stock
Liquid
5 mg USD 96 In-stock
10 mg USD 130 In-stock
50 mg USD 460 In-stock
100 mg USD 810 In-stock
200 mg   Get quote  
500 mg   Get quote  

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 8 publication(s) in Google Scholar

Other Forms of Naspm:

Naspm Related Antibodies

Top Publications Citing Use of Products

    Naspm purchased from MedChemExpress. Usage Cited in: Toxicol In Vitro. 2017 Oct;44:57-65.  [Abstract]

    A Transwell invasion assay of cells is used to measure invasiveness after treatment with L-glutamate, propofol, 1-Naphthyl acetyl spermine (NAS), or (R, S)-AMPA.

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    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Naspm (1-Naphthyl acetyl spermine), a synthetic analogue of Joro spider toxin, is a calcium permeable AMPA (CP-AMPA) receptors antagonist.

    In Vitro

    NASPM selectively suppresses the inwardly rectifying and Ca2+-permeable AMPA receptors expressed in type II neurons. It has no effect on AMPA receptors in type I neurons. At -60 mV, NASPM suppresses AMPA receptors in type II neurons with an IC50 value of 0.33 µM. The blocking effect of NASPM on the Ca2+-permeable AMPA receptors is use and voltage-dependent[1].

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

    Naspm Related Antibodies
    Molecular Weight

    370.53

    Formula

    C22H34N4O
    CAS No.
    Appearance

    Liquid (Density: 1.062 g/cm3)

    Color

    Colorless to light yellow

    SMILES

    O=C(NCCCNCCCCNCCCN)CC1=C2C=CC=CC2=CC=C1
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage
    Pure form -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 (26.99 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 2.6988 mL 13.4942 mL 26.9884 mL
    5 mM 0.5398 mL 2.6988 mL 5.3977 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.

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    • 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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    Volume (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: ≥ 1 mg/mL (2.70 mM); Clear solution

      This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 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: ≥ 1 mg/mL (2.70 mM); Clear solution

      This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 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)

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    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: 96.30%

    COA (240 KB) LCMS (87 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. 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 2.6988 mL 13.4942 mL 26.9884 mL 67.4709 mL
    5 mM 0.5398 mL 2.6988 mL 5.3977 mL 13.4942 mL
    10 mM 0.2699 mL 1.3494 mL 2.6988 mL 6.7471 mL
    15 mM 0.1799 mL 0.8996 mL 1.7992 mL 4.4981 mL
    20 mM 0.1349 mL 0.6747 mL 1.3494 mL 3.3735 mL
    25 mM 0.1080 mL 0.5398 mL 1.0795 mL 2.6988 mL
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    Naspm 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:

    Naspm122306-11-01-Naphthylacetyl spermineiGluRIonotropic glutamate receptorsInhibitorinhibitorinhibit

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