(-)-Huperzine A

Catalog No. Size PriceQuantity
M7636-2 2mg solid $95
M7636-10 10mg solid $285


(-)-Huperzine A (Huperzine A) is an alkaloid isolated from a Chinese club moss, with neuroprotective activity. (-)-Huperzine A is a potent, highly specific, reversible and blood-brain barrier penetrant inhibitor of acetylcholinesterase (AChE), with an IC50 of 82 nM. (-)-Huperzine A also is non-competitive antagonist of N-methyl-D-aspartate glutamate (NMDA) receptor. (-)-Huperzine A is developed for the research of neurodegenerative diseases, including Alzheimer’s disease.

Product information

CAS Number: 102518-79-6

Molecular Weight: 242.32

Formula: C15H18N2O



Huperzine A


Chemical Name: (1R, 9R, 13Z)-1-amino-13-ethylidene-11-methyl-6-azatricyclo[, ]trideca-2(7), 3, 10-trien-5-one

Smiles: CC1C[C@@]2(N)/C(=C\C)/[C@H](CC3NC(=O)C=CC2=3)C=1


InChi: InChI=1S/C15H18N2O/c1-3-11-10-6-9(2)8-15(11,16)12-4-5-14(18)17-13(12)7-10/h3-6,10H,7-8,16H2,1-2H3,(H,17,18)/b11-3-/t10-,15+/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO: 0.66 mg/mL(2.72 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

In Vitro:

(-)-Huperzine A is a novel alkaloid isolated from the Chinese herb Huperzia serrata. (-)-Huperzine A preferentially inhibits tetrameric AChE (G4 form). (-)-Huperzine A is more potent than tacrine, physostigmine, galanthamine, and rivastigmine with respect to inhibition of AChE activity, whereas HupA is the least potent BuChE inhibitor among the inhibitors. (-)-Huperzine A possesses the ability to protect cells against hydrogen peroxide, β-amyloid protein, glutamate, ischemia and staurosporine-induced cytotoxicity and apoptosis. These protective effects are related to its ability to attenuate oxidative stress, regulate the expression of apoptotic proteins Bcl-2, Bax, P53, and caspase-3, protect mitochondria, upregulate nerve growth factor and its receptors, and interfere with amyloid precursor protein metabolism.

In Vivo:

(-)-Huperzine A can ameliorate the learning and memory deficiency in animal models and AD patients. Its potentially beneficial actions include modification of β-amyloid peptide processing, reduction of oxidative stress, neuronal protection against apoptosis, and regulation of the expression and secretion of nerve growth factor (NGF) and NGF signaling. (-)-Huperzine A significantly inhibits AChE activity in the cortex, hippocampus, striatum, medial septum, medulla oblongata, cerebellum, and hypothalamus of rats that are killed 30 min following the administration of (-)-Huperzine A at several dose levels compared with the saline control.


  1. Wang R, et al. Acta Pharmacol Sin, 2006, 27(1), 1-26.
  2. Zhang HY, et al. Trends Pharmacol Sci, 2006, 27(12), 619-625.
  3. Zhao Q, et al. Eur J Pharmacol, 2002, 455(2-3), 101-107.

Products are for research use only. Not for human use.

Payment & Security

PayPal Venmo

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Estimate shipping

You may also like

Recently viewed