2. Neuronal Signaling
  3. Amyloid-β
  4. MDR-1339

MDR-1339 (DWK-1339) is an orally active and blood-brain-barrier-permeable Aβ-aggregation inhibitor, used in the research of Alzheimer's disease.

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

MDR-1339 Chemical Structure

MDR-1339 Chemical Structure

CAS No. : 1018946-38-7

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10 mM * 1 mL in DMSO
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Customer Review

Based on 1 publication(s) in Google Scholar

MDR-1339 Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

MDR-1339 (DWK-1339) is an orally active and blood-brain-barrier-permeable Aβ-aggregation inhibitor, used in the research of Alzheimer's disease.

IC50 & Target

Amyloid-β[1]
In Vitro

MDR-1339 is an Aβ-aggregation inhibitor, and shows no significant inhibition a panel of CYP isozymes, while it slightly inhibits CYP2C8 (IC50, 31.4 μM). MDR-1339 (3.1-50 μM) dose-dependently blocks the formation of Aβ aggregates, and disaggregates Aβ fibrils. MDR-1339 (1.5-10 μM) also protects cells from this Aβ-induced toxicity[1].

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

MDR-1339 Related Antibodies
In Vivo

MDR-1339 (0.1-10 mg/kg, p.o.) dose-dependently restores the passive avoidance responses in mice models of Alzheimer's disease (AD), with an ED50 of 0.19 mg/kg. MDR-1339 (30 and 100 mg/kg, p.o. daily for 8 weeks) significantly improves spontaneous alternation, and reduces the Aβ1-40 and Aβ1-42 levels in APP/PS1 mice[1].

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

326.39

Formula

C20H22O4
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

COCCCC1=CC=C(OC(C2=CC=C(OC)C(OC)=C2)=C3)C3=C1
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 (153.19 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 3.0638 mL 15.3191 mL 30.6382 mL
5 mM 0.6128 mL 3.0638 mL 6.1276 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)

Mass
=
Concentration
×
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 (7.66 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 (7.66 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
Cell Assay
[1]

HT22 cells, a murine cell line of hippocampal origin, are grown in Dulbecco's modified Eagle's medium (DMEM) containing 10% fetal bovine serum and 5% penicillin/streptomycin. At the outset, 90% confluent cells are dissociated and plated at 5 × 103 cells/well in a 96-well plate. When the cells are attached to the plate, the medium is replaced with plain DMEM. The cells are treated with MDR-1339. One hour after MDR-1339 treatment, 4 μL of pre-diluted 25 μM Aβ42 is added to the media, and the cells are further incubated for 18 h. For the determination of cell viability, 15 μL of 5 mg/mL MTT is added to each well and incubated for 3 h. The formazan that formed is dissolved in DMSO, and the absorbance is measured at 570-630 nm using a plate reader[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

For this study, a total of 24 (n = 8 for each group) APP/PS1 [B6C3-Tg (APPswe, PSEN1dE9) 85Dbo/J] Tg mice are utilized. The mice are housed in a controlled environment under standard room temperature, relative humidity and a 12 h light/dark cycle with free access to food and water. APP/PS1 treated groups are orally administered with MDR-1339 at a dose of 30 or 100 mg/kg body weight once daily. MDR-1339 treatment is at the age of 29 weeks, and the treatment is conducted for 8 weeks[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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 3.0638 mL 15.3191 mL 30.6382 mL 76.5955 mL
5 mM 0.6128 mL 3.0638 mL 6.1276 mL 15.3191 mL
10 mM 0.3064 mL 1.5319 mL 3.0638 mL 7.6595 mL
15 mM 0.2043 mL 1.0213 mL 2.0425 mL 5.1064 mL
20 mM 0.1532 mL 0.7660 mL 1.5319 mL 3.8298 mL
25 mM 0.1226 mL 0.6128 mL 1.2255 mL 3.0638 mL
30 mM 0.1021 mL 0.5106 mL 1.0213 mL 2.5532 mL
40 mM 0.0766 mL 0.3830 mL 0.7660 mL 1.9149 mL
50 mM 0.0613 mL 0.3064 mL 0.6128 mL 1.5319 mL
60 mM 0.0511 mL 0.2553 mL 0.5106 mL 1.2766 mL
80 mM 0.0383 mL 0.1915 mL 0.3830 mL 0.9574 mL
100 mM 0.0306 mL 0.1532 mL 0.3064 mL 0.7660 mL
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MDR-1339 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:

MDR-13391018946-38-7DWK-1339MDR1339MDR 1339DWK1339DWK 1339Amyloid-ββ-amyloid peptideAβAbetaInhibitorinhibitorinhibit

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