1. Neuronal Signaling Membrane Transporter/Ion Channel
  2. Cholinesterase (ChE) nAChR
  3. Galanthamine hydrobromide

Galanthamine hydrobromide  (Synonyms: Galantamine hydrobromide)

Cat. No.: HY-A0009 Purity: 99.93%
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Galanthamine hydrobromide (Galantamine hydrobromide) is a selective, reversible, competitive, alkaloid AChE inhibitor, with an IC50 of 0.35 µM. Galanthamine hydrobromide is a potent allosteric potentiating ligand (APL) of human α3β4, α4β2, α6β4 nicotinic receptors ( nAChRs). Galanthamine hydrobromide is developed for the research of Alzheimer's disease (AD).

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

Galanthamine hydrobromide Chemical Structure

Galanthamine hydrobromide Chemical Structure

CAS No. : 1953-04-4

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10 mM * 1 mL in DMSO
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Customer Review

Based on 12 publication(s) in Google Scholar

Other Forms of Galanthamine hydrobromide:

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Description

Galanthamine hydrobromide (Galantamine hydrobromide) is a selective, reversible, competitive, alkaloid AChE inhibitor, with an IC50 of 0.35 µM. Galanthamine hydrobromide is a potent allosteric potentiating ligand (APL) of human α3β4, α4β2, α6β4 nicotinic receptors ( nAChRs). Galanthamine hydrobromide is developed for the research of Alzheimer's disease (AD)[1][2][3].

IC50 & Target

AChE

 

In Vitro

Galanthamine hydrobromide is 53-fold selectivity for AChE over butyrylcholinesterase[2].
Galanthamine hydrobromide (25-1000 µM) inhibits both Aβ 1-40 (50 µM) and Aβ 1-42 (50 µM) aggregation[4].
Galanthamine hydrobromide (25-1000 µM) protects against Aβ(1-40) and Aβ(1-42) toxicity in SH-SY5Y cells[4].
Galanthamine hydrobromide also dramatically reduces Aβ(1-40)-induced cellular apoptosis[4].

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

In Vivo

Galanthamine hydrobromide (1.25-2.5 mg/kg; i.p. ) reduces cognitive deficits in APP23 mice[5].
Galanthamine hydrobromide (10 mg/kg; i.g.) displays short elimination half-life of approximately 2 h in wild-type mice[6].

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

Animal Model: APP23 mice[5]
Dosage: 1.25 mg/kg, 2.5 mg/kg
Administration: Intraperitoneal injection, daily, 1 week
Result: Effectively remedied the spatial learning deficit.
Animal Model: Female 57B1/6J wild type[6]
Dosage: 10 mg/kg
Administration: Oral gavage (Pharmacokinetic Analysis)
Result: Cmax (0.31 µg/mL), t1/2β (1.6 h), AUC0-24h (0.67 µg • h/mL).
Clinical Trial
Molecular Weight

368.27

Formula

C17H22BrNO3

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O[C@@H]1C[C@@H]2OC3=C4C(CN(C)CC[C@]42C=C1)=CC=C3OC.Br

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : 16.67 mg/mL (45.27 mM; ultrasonic and warming and heat to 80°C)

DMSO : 12.5 mg/mL (33.94 mM; ultrasonic and warming and heat to 60°C; 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 2.7154 mL 13.5770 mL 27.1540 mL
5 mM 0.5431 mL 2.7154 mL 5.4308 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* 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)

Mass
=
Concentration
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Volume
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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: ≥ 1.25 mg/mL (3.39 mM); Clear solution

    This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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: ≥ 1.25 mg/mL (3.39 mM); Clear solution

    This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 10 mg/mL (27.15 mM); Clear solution; Need ultrasonic

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
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
Purity & Documentation

Purity: 99.93%

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 (sealed storage, away from moisture). 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 / H2O 1 mM 2.7154 mL 13.5770 mL 27.1540 mL 67.8850 mL
5 mM 0.5431 mL 2.7154 mL 5.4308 mL 13.5770 mL
10 mM 0.2715 mL 1.3577 mL 2.7154 mL 6.7885 mL
15 mM 0.1810 mL 0.9051 mL 1.8103 mL 4.5257 mL
20 mM 0.1358 mL 0.6788 mL 1.3577 mL 3.3942 mL
25 mM 0.1086 mL 0.5431 mL 1.0862 mL 2.7154 mL
30 mM 0.0905 mL 0.4526 mL 0.9051 mL 2.2628 mL
H2O 40 mM 0.0679 mL 0.3394 mL 0.6788 mL 1.6971 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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Galanthamine hydrobromide Related Classifications

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  • 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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