1. Cell Cycle/DNA Damage Cytoskeleton
  2. Microtubule/Tubulin
  3. MAP4343

MAP4343 is the 3-methylether derivative of Pregnenolone. MAP4343 binds in vitro to microtubule-associated protein 2 (MAP2), stimulates the polymerization of tubulin, enhances the extension of neurites and protects neurons against neurotoxic agents.

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MAP4343 Chemical Structure

MAP4343 Chemical Structure

CAS No. : 511-26-2

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10 mM * 1 mL in DMSO
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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of MAP4343:

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  • Biological Activity

  • Purity & Documentation

  • References

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Description

MAP4343 is the 3-methylether derivative of Pregnenolone. MAP4343 binds in vitro to microtubule-associated protein 2 (MAP2), stimulates the polymerization of tubulin, enhances the extension of neurites and protects neurons against neurotoxic agents[1][2].

In Vitro

MAP4343 (40 μM; 15 or 30 min) stimulates microtubule polymerization in vitro[1].
MAP4343 (30 μM; 2-8 d) stimulates nerve growth factor (NGF)-induced neurite outgrowth in PC12 cells[1].
MAP4343 (20 μM; 1 h) protects against microtubule depolymerization induced by Nocodazole in PC12 cells[1]

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

In Vivo

MAP4343 (12 mg/kg; daily s.c. for 28 d) improves the recovery of locomotor function after spinal cord injury (SCI) in rats[2].
MAP4343 (4 mg/kg; daily s.c. for 6 d) increases MAP2 levels in spinal cord after SCI in rats[2].
MAP4343 (4 mg/kg; daily s.c. for 6 d) increases the size of lumbar spinal motoneurons' dendrite arbours after SCI in rats[2].

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

Animal Model: Adult Sprague-Dawley male rats with spinal cord injury[2]
Dosage: 12 mg/kg
Administration: Daily s.c. for 28 days
Result: Increased the number of animals able to walk with weight-supported plantar steps.
Showed forelimb-hindlimb coordination at the end of the study.
Clinical Trial
Molecular Weight

330.50

Formula

C22H34O2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

C[C@@]1([C@H]2C(C)=O)[C@](CC2)([H])[C@@](CC=C(C3)[C@@]4(CC[C@@H]3OC)C)([H])[C@]4([H])CC1

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 : 25 mg/mL (75.64 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 3.0257 mL 15.1286 mL 30.2572 mL
5 mM 0.6051 mL 3.0257 mL 6.0514 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)

Mass
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Concentration
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Volume
×
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

×
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 (7.56 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. 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 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% Corn Oil

    Solubility: ≥ 2.5 mg/mL (7.56 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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).
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, 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 3.0257 mL 15.1286 mL 30.2572 mL 75.6430 mL
5 mM 0.6051 mL 3.0257 mL 6.0514 mL 15.1286 mL
10 mM 0.3026 mL 1.5129 mL 3.0257 mL 7.5643 mL
15 mM 0.2017 mL 1.0086 mL 2.0171 mL 5.0429 mL
20 mM 0.1513 mL 0.7564 mL 1.5129 mL 3.7821 mL
25 mM 0.1210 mL 0.6051 mL 1.2103 mL 3.0257 mL
30 mM 0.1009 mL 0.5043 mL 1.0086 mL 2.5214 mL
40 mM 0.0756 mL 0.3782 mL 0.7564 mL 1.8911 mL
50 mM 0.0605 mL 0.3026 mL 0.6051 mL 1.5129 mL
60 mM 0.0504 mL 0.2521 mL 0.5043 mL 1.2607 mL
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MAP4343 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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MAP4343
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