1. Neuronal Signaling
  2. Amyloid-β
  3. Emrusolmin

Emrusolmin  (Synonyms: Anle138b)

Cat. No.: HY-101855 Purity: 99.96%
COA Handling Instructions

Emrusolmin (Anle138b), an oligomeric aggregation inhibitor, blocks the formation of pathological aggregates of prion protein (PrPSc) and of α-synuclein (α-syn). Emrusolmin strongly inhibits oligomer accumulation, neuronal degeneration, and disease progression in vivo. Emrusolmin has low toxicity and an excellent oral bioavailability and blood-brain-barrier penetration. Emrusolmin blocks Aβ channels and rescues disease phenotypes in a mouse model for amyloid pathology.

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

Emrusolmin Chemical Structure

Emrusolmin Chemical Structure

CAS No. : 882697-00-9

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Solid + Solvent
10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

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Description

Emrusolmin (Anle138b), an oligomeric aggregation inhibitor, blocks the formation of pathological aggregates of prion protein (PrPSc) and of α-synuclein (α-syn). Emrusolmin strongly inhibits oligomer accumulation, neuronal degeneration, and disease progression in vivo. Emrusolmin has low toxicity and an excellent oral bioavailability and blood-brain-barrier penetration. Emrusolmin blocks Aβ channels and rescues disease phenotypes in a mouse model for amyloid pathology[1][2].

In Vitro

Oligomeric aggregates are presumed to be the key neurotoxic agent. Emrusolmin blocksthe formation of pathological aggregates of prion protein and of α-synuclein, which is deposited in Parkinson’s disease and other synucleinopathies such as dementia with Lewy bodies and multiple system atrophy. Emrusolmin strongly inhibits all prion strains tested including BSE-derived and human prions. Emrusolmin shows structure-dependent binding to pathological aggregates and strongly inhibits formation of pathological oligomers both for prion protein and α-synuclein[1].

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

In Vivo

Emrusolmin shows structure-dependent binding to pathological aggregates and strongly inhibits formation of pathological oligomers in vitro and in vivo both for prion protein and α-synuclein[1].
Emrusolmin (0.6-2 g/kg; p.o.) modulates α‐synuclein oligomerization[3].

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

Animal Model: Two‐month‐old PLP‐hαSyn mice[3]
Dosage: 0.6 and 2 g/kg
Administration: Oral
Result: Prevented motor deficits and neurodegeneration in the PLP‐hαSyn mice.
Clinical Trial
Molecular Weight

343.17

Formula

C16H11BrN2O2

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

BrC1=CC(C2=CC(C3=CC=C(OCO4)C4=C3)=NN2)=CC=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 (145.70 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.9140 mL 14.5700 mL 29.1401 mL
5 mM 0.5828 mL 2.9140 mL 5.8280 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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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

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Volume (start)

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C2

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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 (7.29 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    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 (7.29 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:

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mg/kg

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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, 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 2.9140 mL 14.5700 mL 29.1401 mL 72.8502 mL
5 mM 0.5828 mL 2.9140 mL 5.8280 mL 14.5700 mL
10 mM 0.2914 mL 1.4570 mL 2.9140 mL 7.2850 mL
15 mM 0.1943 mL 0.9713 mL 1.9427 mL 4.8567 mL
20 mM 0.1457 mL 0.7285 mL 1.4570 mL 3.6425 mL
25 mM 0.1166 mL 0.5828 mL 1.1656 mL 2.9140 mL
30 mM 0.0971 mL 0.4857 mL 0.9713 mL 2.4283 mL
40 mM 0.0729 mL 0.3643 mL 0.7285 mL 1.8213 mL
50 mM 0.0583 mL 0.2914 mL 0.5828 mL 1.4570 mL
60 mM 0.0486 mL 0.2428 mL 0.4857 mL 1.2142 mL
80 mM 0.0364 mL 0.1821 mL 0.3643 mL 0.9106 mL
100 mM 0.0291 mL 0.1457 mL 0.2914 mL 0.7285 mL
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Emrusolmin 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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Emrusolmin
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