GR 125743
Based on 1 Customer Validation
GR 125743 is a selective 5-HT1B/1D receptor antagonist, with pKis of 8.85 and 8.31 for wild-type h5-HT1B and wild-type h5-HT1D, respectively. GR 125743 is used for the research of Parkinson's disease and cardiovascular diseases.
For research use only. We do not sell to patients.
- Purity: 99.77%
- CAS No.: 148547-33-5
- Formula: C25H28N4O2
- Molecular Weight:416.52
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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All 5-HT Receptor Isoforms
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Biological Activity
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human 5-HT1B Receptor 8.85 (pKi) |
5-HT1B Receptor |
5-HT1D Receptor |
human 5-HT1D Receptor 8.31 (pKi) |
GR 125743 has a Kd of 0.61 nM for h5-HT1B[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male Dunkin Hartley guinea-pigs (350-450 g)[2]
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Dosage:0.3 mg/kg
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Administration:Intraperitoneal injection
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Result:Produced significant transient increases in extracellular 5-HT.
Chemical Information
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CAS No. 148547-33-5
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Appearance Solid
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Molecular Weight 416.52
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Formula C25H28N4O2
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Color White to off-white
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SMILES
O=C(C1=CC=C(C(C)=C1)C2=CC=NC=C2)NC3=CC=C(C(N4CCN(CC4)C)=C3)OC
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Solvent & Solubility
DMSO : 100 mg/mL (240.08 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 (protect from 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 (protect from 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: ≥ 2.5 mg/mL (6.00 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 (6.00 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.
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 (protect from 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 (272 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. T Wurch, et al. Induction of a high-affinity ketanserin binding site at the 5-Hydroxytryptamine(1B) receptor by modification of its carboxy-terminal intracellular portion. Characterization of human serotonin 1D and 1B receptors using [3H]-GR-125743, a novel radiolabelled serotonin 5HT1D/1B receptor antagonist. Biochem Pharmacol. 2000 May 1;59(9):1117-21. [Content Brief]
[2]. Roberts, C., et al. The role of 5-HT1B/1D receptors in the modulation of 5-hydroxytryptamine levels in the frontal cortex of the conscious guinea pig. European Journal of Pharmacology. 1997 May 12;326(1):23-30. [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 (protect from 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 | 2.4008 mL | 12.0042 mL | 24.0085 mL | 60.0211 mL |
| 5 mM | 0.4802 mL | 2.4008 mL | 4.8017 mL | 12.0042 mL | |
| 10 mM | 0.2401 mL | 1.2004 mL | 2.4008 mL | 6.0021 mL | |
| 15 mM | 0.1601 mL | 0.8003 mL | 1.6006 mL | 4.0014 mL | |
| 20 mM | 0.1200 mL | 0.6002 mL | 1.2004 mL | 3.0011 mL | |
| 25 mM | 0.0960 mL | 0.4802 mL | 0.9603 mL | 2.4008 mL | |
| 30 mM | 0.0800 mL | 0.4001 mL | 0.8003 mL | 2.0007 mL | |
| 40 mM | 0.0600 mL | 0.3001 mL | 0.6002 mL | 1.5005 mL | |
| 50 mM | 0.0480 mL | 0.2401 mL | 0.4802 mL | 1.2004 mL | |
| 60 mM | 0.0400 mL | 0.2001 mL | 0.4001 mL | 1.0004 mL | |
| 80 mM | 0.0300 mL | 0.1501 mL | 0.3001 mL | 0.7503 mL | |
| 100 mM | 0.0240 mL | 0.1200 mL | 0.2401 mL | 0.6002 mL |
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