XE991
Based on 3 publication(s) in Google Scholar
XE 991 dihydrochloride, a Kv7 (KCNQ) channels blocker, potently inhibits Kv7.1 (KCNQ1), Kv7.2 (KCNQ2), Kv7.2 + Kv7.3 (KCNQ3) channel, and M-current with IC50s of 0.75 μM, 0.71 μM, 0.6 μM, and 0.98 μM, respectively.
For research use only. We do not sell to patients.
- Purity: 99.69%
- CAS No.: 122955-42-4
- Formula: C26H20N2O
- Molecular Weight:376.45
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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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Publications Citing Use of MedChemExpress (MCE) XE991
More
Biological Activity
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| HEK293 | IC50 |
>32 μM
Compound: 2; XE991
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Inhibition of ERG in human HEK293 cells incubated for 1 hr by thallium flux assay
Inhibition of ERG in human HEK293 cells incubated for 1 hr by thallium flux assay
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[PMID: 31668424] |
| HEK293 | IC50 |
0.055 μM
Compound: 2; XE991
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Inhibition of Kv7.2 in human HEK293 cells incubated for 1 hr by thallium flux assay
Inhibition of Kv7.2 in human HEK293 cells incubated for 1 hr by thallium flux assay
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[PMID: 31668424] |
XE 991 dihydrochloride possesses an EC50 of 490 nM for enhancement of [3H]ACh release from rat brain slices, and shows good in vivo potency and duration of action[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 122955-42-4
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Appearance Solid
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Molecular Weight 376.45
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Formula C26H20N2O
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Color Light yellow to yellow
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SMILES
O=C1C2=C(C=CC=C2)C(CC3=CC=NC=C3)(CC4=CC=NC=C4)C5=CC=CC=C15
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (3)
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Journal Impact Factor
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Most Recent
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J Clin Invest
Potentiation of BKCa channels by cystic fibrosis transmembrane conductance regulator (CFTR) correctors VX-445 and VX-121. [Abstract]2024 Jul 2;134(16):e176328. PMID: 38954478 -
Front Physiol
Kv7(KCNQ)-K+-Channels Influence Total Peripheral Resistance in Female but Not Male Rats, and Hamper Catecholamine Release in Hypertensive Rats of Both Sexes. [Abstract]2018 Feb 20:9:117. PMID: 29515459 -
Front Physiol
M-currents (Kv7.2-7.3/KCNQ2-KCNQ3) Are Responsible for Dysfunctional Autonomic Control in Hypertensive Rats. [Abstract]2016 Nov 29:7:584. PMID: 27965589
Solvent & Solubility
DMSO : 100 mg/mL (265.64 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. 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. 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 (6.64 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.
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.
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 (280 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. 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 | 2.6564 mL | 13.2820 mL | 26.5640 mL | 66.4099 mL |
| 5 mM | 0.5313 mL | 2.6564 mL | 5.3128 mL | 13.2820 mL | |
| 10 mM | 0.2656 mL | 1.3282 mL | 2.6564 mL | 6.6410 mL | |
| 15 mM | 0.1771 mL | 0.8855 mL | 1.7709 mL | 4.4273 mL | |
| 20 mM | 0.1328 mL | 0.6641 mL | 1.3282 mL | 3.3205 mL | |
| 25 mM | 0.1063 mL | 0.5313 mL | 1.0626 mL | 2.6564 mL | |
| 30 mM | 0.0885 mL | 0.4427 mL | 0.8855 mL | 2.2137 mL | |
| 40 mM | 0.0664 mL | 0.3320 mL | 0.6641 mL | 1.6602 mL | |
| 50 mM | 0.0531 mL | 0.2656 mL | 0.5313 mL | 1.3282 mL | |
| 60 mM | 0.0443 mL | 0.2214 mL | 0.4427 mL | 1.1068 mL | |
| 80 mM | 0.0332 mL | 0.1660 mL | 0.3320 mL | 0.8301 mL | |
| 100 mM | 0.0266 mL | 0.1328 mL | 0.2656 mL | 0.6641 mL |
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