Galantamine Hydrobromide is the hydrobromide salt form of galantamine, a tertiary alkaloid with anticholinesterase and neurocognitive-enhancing activities. It is an alkaloid acetylcholinesterase inhibitor. Galantamine competitively and reversibly inhibits acetylcholinesterase, thereby increasing the concentration and enhancing the action of acetylcholine (Ach). This agent may improve neurocognitive function in mild and moderate Alzheimer' s disease and may reduce abstinence-induced cognitive symptoms that promote smoking relapse.
CAS Number: 1953-04-4
Molecular Weight: 368.27
Chemical Name: (4aS, 6R, 8aS)-4a, 5, 9, 10, 11, 12-Hexahydro-3-methoxy-11-methyl-6H-benzofuro[3a, 3, 2-ef]benzazepin-6-ol hydrobromide
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: Water 10 mg/mL (27.15 mM)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥360 days if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined
HS Tariff Code: 382200
How to use
Galanthamine has been demonstrated to have an IC50 of 14 nM and 15 nM on AChE in post-mortem human brain frontal cortex and the hippocampus region. Red-cell cholinesterase activity in blood samples from the neurosurgery patients is 10 times more strongly inhibited by Galanthamine in brain tissue samples. Galanthamine (1 μM) activates single channels with conductance's of 18 and 30 pS in outside-out patches excised from dexamethasone mouse fibroblasts (M10 cells). Galanthamine acts as noncompetitive nicotinic receptor agonists' on clonal rat pheochromocytoma (PC12) cells. Galanthamine (50 μM) activates single-channel currents in outside-out patches excised from clonal PC12 cells.
Galantamine significantly increases the number of living pyramidal neurons after ischemia-reperfusion injury. Galantamine significantly reduces TUNEL, active caspase-3, and SOD-2 immunoreactivity. The nicotinic antagonist mecamylamine blockes the protective effects of galantamine. The neuroprotective effects of galantamine are preserved even when first administered at 3 hours postischemia.
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