Guanfacine hydrochloride
Based on 3 publication(s) in Google Scholar
Guanfacine hydrochloride is an orally active and blood-brain barrier permeability noradrenergic α2A agonist and has high selective for the α2A receptor subtype. Guanfacine has effects in producing hypotension and sedation. Guanfacine can be used for the research of a variety of prefrontal cortex (PFC) cognitive disorders, including tourette's syndrome and attention deficit hyperactivity disorder (ADHD).
For research use only. We do not sell to patients.
- Purity: 99.98%
- CAS No.: 29110-48-3
- Formula: C9H10Cl3N3O
- Molecular Weight:282.55
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications Citing Use of MedChemExpress (MCE) Guanfacine hydrochloride
MoreAll Adrenergic Receptor Isoforms
More
Biological Activity
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α adrenergic receptor |
Guanfacine (hydrochloride) increases the delay-related neuronal firing needed for working memory on dIPFC neurons at the cellular level[1][2].
Guanfacine improves PFC cognitive function by inhibiting the production of CAMP, closing HCN channels, and strengthening the PFC networks[1][2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Guanfacine improves cognitive performance when infused directly into the rat or monkey PFC[1][2].
Guanfacine blocks 2A receptors in the monkey dIPFC markedly impairs working memory, behavioral inhibition and greatly reduces persistent neuronal firing[1][2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 29110-48-3
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Appearance Solid
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Molecular Weight 282.55
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Formula C9H10Cl3N3O
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Color White to off-white
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SMILES
O=C(NC(N)=N)CC1=C(Cl)C=CC=C1Cl.[H]Cl
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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
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications (3)
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Journal Impact Factor
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Most Recent
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Nat Commun
A ventral pallidum-locus coeruleus-lateral hypothalamus pathway modulates brain arousal in freely behaving and isoflurane-anesthetized male mice. [Abstract]2025 May 16;16(1):4560. PMID: 40379709 -
Cell Rep Methods
RECOVER identifies synergistic drug combinations in vitro through sequential model optimization. [Abstract]2023 Oct 23;3(10):100599. PMID: 37797618 -
Solvent & Solubility
DMSO : ≥ 30 mg/mL (106.18 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 20 mg/mL (70.78 mM; Need ultrasonic)
* "≥" means soluble, but saturation unknown.
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.
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.
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: ≥ 2.5 mg/mL (8.85 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (8.85 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
Working solution concentration: 0.22 mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
Purity & Documentation
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Data Sheet (274 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]. Amy F T Arnsten, et al. Guanfacine for the treatment of cognitive disorders: a century of discoveries at Yale. Yale J Biol Med. 2012 Mar;85(1):45-58. Epub 2012 Mar 29. [Content Brief]
[3]. Min Wang, et al. Alpha2A-adrenoceptors strengthen working memory networks by inhibiting cAMP-HCN channel signaling in prefrontal cortex. Cell. 2007 Apr 20;129(2):397-410. [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). 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 |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 3.5392 mL | 17.6960 mL | 35.3920 mL | 88.4799 mL |
| 5 mM | 0.7078 mL | 3.5392 mL | 7.0784 mL | 17.6960 mL | |
| 10 mM | 0.3539 mL | 1.7696 mL | 3.5392 mL | 8.8480 mL | |
| 15 mM | 0.2359 mL | 1.1797 mL | 2.3595 mL | 5.8987 mL | |
| 20 mM | 0.1770 mL | 0.8848 mL | 1.7696 mL | 4.4240 mL | |
| 25 mM | 0.1416 mL | 0.7078 mL | 1.4157 mL | 3.5392 mL | |
| 30 mM | 0.1180 mL | 0.5899 mL | 1.1797 mL | 2.9493 mL | |
| 40 mM | 0.0885 mL | 0.4424 mL | 0.8848 mL | 2.2120 mL | |
| 50 mM | 0.0708 mL | 0.3539 mL | 0.7078 mL | 1.7696 mL | |
| 60 mM | 0.0590 mL | 0.2949 mL | 0.5899 mL | 1.4747 mL | |
| DMSO | 80 mM | 0.0442 mL | 0.2212 mL | 0.4424 mL | 1.1060 mL |
| 100 mM | 0.0354 mL | 0.1770 mL | 0.3539 mL | 0.8848 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.