Huperzine B
Based on 1 Customer Validation
Huperzine B is a Lycopodium alkaloid isolated from Huperzia serrata and a highly selective acetylcholinesterase (AChE) inhibitor. Huperzine B can be uesd to can be used to improve Alzheimer's disease.
For research use only. We do not sell to patients.
- Purity: 98.73%
- CAS No.: 103548-82-9
- Formula: C16H20N2O
- Molecular Weight:256.34
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Storage:
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Biological Activity
AChE[1]
Chemical Information
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CAS No. 103548-82-9
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Appearance Solid
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Molecular Weight 256.34
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Formula C16H20N2O
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Color White to off-white
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SMILES
CC1=C[C@]2([H])[C@]3([H])[C@](C(C=CC4=O)=C(N4)C2)(NCCC3)C1
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Solvent & Solubility
DMSO : 25 mg/mL (97.53 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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 and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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 and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 1 mg/mL (3.90 mM); Clear solution
This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 1 mg/mL (3.90 mM); Clear solution
This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 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.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
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).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL. * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
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
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Data Sheet (275 KB)
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SDS (420 KB)
- English - EN (420 KB)
- Français - FR (420 KB)
- Deutsch - DE (420 KB)
- Norwegian - NO (420 KB)
- Español - ES (420 KB)
- Swedish - SV (420 KB)
- Italian - IT (420 KB)
- Korean - KR (420 KB)
- Portuguese - PT (420 KB)
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Handling Instructions (2659 KB)
References
[1]. Zhang HY, et al. Huperzine B, a novel acetylcholinesterase inhibitor, attenuates hydrogen peroxide induced injury in PC12 cells. Neurosci Lett. 2000 Sep 29;292(1):41-4. [Content Brief]
[2]. He XC, et al. Study on dual-site inhibitors of acetylcholinesterase: Highly potent derivatives of bis- and bifunctional huperzine B. Bioorg Med Chem. 2007 Feb 1;15(3):1394-408. [Content Brief]
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 and light). 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 | 1 mM | 3.9011 mL | 19.5053 mL | 39.0107 mL | 97.5267 mL |
| 5 mM | 0.7802 mL | 3.9011 mL | 7.8021 mL | 19.5053 mL | |
| 10 mM | 0.3901 mL | 1.9505 mL | 3.9011 mL | 9.7527 mL | |
| 15 mM | 0.2601 mL | 1.3004 mL | 2.6007 mL | 6.5018 mL | |
| 20 mM | 0.1951 mL | 0.9753 mL | 1.9505 mL | 4.8763 mL | |
| 25 mM | 0.1560 mL | 0.7802 mL | 1.5604 mL | 3.9011 mL | |
| 30 mM | 0.1300 mL | 0.6502 mL | 1.3004 mL | 3.2509 mL | |
| 40 mM | 0.0975 mL | 0.4876 mL | 0.9753 mL | 2.4382 mL | |
| 50 mM | 0.0780 mL | 0.3901 mL | 0.7802 mL | 1.9505 mL | |
| 60 mM | 0.0650 mL | 0.3251 mL | 0.6502 mL | 1.6254 mL | |
| 80 mM | 0.0488 mL | 0.2438 mL | 0.4876 mL | 1.2191 mL |