LY334370
Based on 1 Customer Validation
LY334370 is a selective 5-HT1F receptor agonist with a Ki of 1.6 nM.
For research use only. We do not sell to patients.
- Purity: 99.59%
- CAS No.: 182563-08-2
- Formula: C21H22FN3O
- Molecular Weight:351.42
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Storage:
4°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
All 5-HT Receptor Isoforms
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Biological Activity
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5-HT1F Receptor |
5-HT1F Receptor 1.6 nM (Ki) |
LY334370 has no vasoconstrictor effects on human cerebral arteries in vitro until a dose of 10-5 M, at which it produces a contraction of 8.5±5.7%; however, this is not significant[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.
Chemical Information
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CAS No. 182563-08-2
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Appearance Solid
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Molecular Weight 351.42
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Formula C21H22FN3O
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Color White to off-white
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SMILES
O=C(C1=CC=C(F)C=C1)NC2=CC3=C(C=C2)NC=C3C4CCN(C)CC4
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
Solvent & Solubility
DMSO : ≥ 55.5 mg/mL (157.93 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" 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 (stored under nitrogen). 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 (stored under nitrogen). 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 (7.11 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 (7.11 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 (stored under nitrogen)
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.
Protocol
Human cerebral artery is used in this study. Segments are prepared as previously described, but briefly they are placed in a buffer solution containing (mM) NaCl 119, NaHCo3 15, KCl 4.6, CaCl2 1.5, NaH2PO4 1.2, MgCl2 1.2, and glucose 5.5. Sections of vessel about 0.5 mm in diameter and 1 to 2 mm in length are mounted in a temperature-controlled tissue bath (37°C) containing buffer solution bubbled with 95% O2 and 5% CO2. The vessel segments are given a tension of 4 mN and allowed to stabilize at this tension for 1 to 1.5 h. Vessel reactivity is tested by exposure to 60 mM KCl. This is done twice for each segment and only if the response is similar to the segment used for LY334370 testing. Responses to LY334370 is calculated as a percentage of the maximum KC1 response[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Male Sprague-Dawley rats (300 to 400 g) are used. Rats are placed in a stereotaxic frame, the skull exposed and thinned by drilling to reveal a branch of the middle meningeal artery whose diameter is measured continuously through the intact skull using intravital microscopy and a video dimension analyser. Neurogenic vasodilation is evoked using a bipolar stimulating electrode placed on the surface of the cranial window approximately 200 μM from the vessel of interest. A control vasodilation response to electrical stimulation is produced and 5 min later LY334370 (3 or 10 mg/kg, iv.) is given and the electrical stimulation repeated after a further 15 min. The mean maximum percentage increase in dural vessel diameter relative to pre-stimulus baseline is calculated for each response and comparisons of vasodilation responses evoked in the presence or absence of LY334370 are made by analysis of variance followed by paired t-tests[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (274 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
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 (stored under nitrogen). 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 | 2.8456 mL | 14.2280 mL | 28.4560 mL | 71.1399 mL |
| 5 mM | 0.5691 mL | 2.8456 mL | 5.6912 mL | 14.2280 mL | |
| 10 mM | 0.2846 mL | 1.4228 mL | 2.8456 mL | 7.1140 mL | |
| 15 mM | 0.1897 mL | 0.9485 mL | 1.8971 mL | 4.7427 mL | |
| 20 mM | 0.1423 mL | 0.7114 mL | 1.4228 mL | 3.5570 mL | |
| 25 mM | 0.1138 mL | 0.5691 mL | 1.1382 mL | 2.8456 mL | |
| 30 mM | 0.0949 mL | 0.4743 mL | 0.9485 mL | 2.3713 mL | |
| 40 mM | 0.0711 mL | 0.3557 mL | 0.7114 mL | 1.7785 mL | |
| 50 mM | 0.0569 mL | 0.2846 mL | 0.5691 mL | 1.4228 mL | |
| 60 mM | 0.0474 mL | 0.2371 mL | 0.4743 mL | 1.1857 mL | |
| 80 mM | 0.0356 mL | 0.1778 mL | 0.3557 mL | 0.8892 mL | |
| 100 mM | 0.0285 mL | 0.1423 mL | 0.2846 mL | 0.7114 mL |