Galanthamine

This product is for research use only, not for human use. We do not sell to patients.

Galanthamine
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Size Price Stock
500mg$250Check With Us
1g$450Check With Us
5g$1350Check With Us

Cat #: V13604 CAS #: 357-70-0 Purity ≥ 99%

Description: Galanthamine is a potent and long-acting AChE inhibitor with IC50 of 0.35 μM, it exhibits 50-fold selectivity against butyryl-cholinesterase.

References: Melanie-Jayne R. Howes, et al. Acetylcholinesterase inhibitors of natural origin. International Journal of Research in Pharmaceutical and Biomedical Sciences 3(SI 1):67-86.

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Molecular Weight (MW)287.35
Molecular FormulaC17H21NO3
CAS No.357-70-0
ProtocolIn VitroGalanthamine inhibits AChE and BChE with IC50 of 0.5 and 8.5 μM. Galanthamine acts as a positive allosteric modulator (PAM) of human α4β2 AChRs expressed in permanently transfected HEK 293 cells. Galanthamine increases the response of (α4β2)2α5 AChRs to 1 μM ACh by up to 220% with very low concerntration(EC50=0.25 nM). Only small potentiation (20%) of either α4β2 or (α4β2)2β3 AChRs is detected using FLEXstation assays. Galanthamine at concentrations of 1 μM and above inhibits all three AChR subtype
In VivoAcute administration of Galantamine (0.3-3 mg/kg, i.p.) increases IGF2 mRNA levels in the hippocampus, but not in the prefrontal cortex, in time- and dose-dependent manner. Galantamine (3 mg/kg, i.p.) causes a transient increase in fibroblast growth factor 2 mRNA levels and a decrease in brain-derived neurotrophic factor mRNA levels in the hippocampus, while it does not affect the mRNA levels of other neurotrophic/growth factors. The Galantamine-induced increase in the hippocampal IGF2 mRNA levels is blocked by Mecamylamine, a nonselective nicotinic acetylcholine (ACh) receptor (nAChR) antagonist, and Methyllycaconitine, a selective α7 nAChR antagonist, but not by Telenzepine, a preferential M1muscarinic ACh receptor antagonist. Moreover, the selective α7 nAChR agonist PHA-543613 increasea the IGF2 mRNA levels, while Donepezil, an acetylcholinesterase inhibitor, does not. Galantamine also increases hippocampal IGF2 protein, which is blocked by Methyllycaconitine
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM3.4801 mL17.4004 mL34.8008 mL69.6015 mL
5mM0.6960 mL3.4801 mL6.9602 mL13.9203 mL
10mM0.3480 mL1.7400 mL3.4801 mL6.9602 mL
20mM0.1740 mL0.8700 mL1.7400 mL3.4801 mL
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%DMSO + % + %Tween 80 + %ddH2O

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Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
  • (2) Be sure to add the solvent(s) in order.