Clomethiazole
Based on 4 publication(s) in Google Scholar
Chlormethiazole is an potent and orally active GABAA agonist. Chlormethiazole inhibits cytochrome P450 isoforms: CYP2A6 and CYP2E1 in human liver microsomes. Chlormethiazole is an anticonvulsant agent and has the potential for treating convulsive status epilepticus.
For research use only. We do not sell to patients.
- Purity: 99.35%
- CAS No.: 533-45-9
- Formula: C6H8ClNS
- Molecular Weight:161.65
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Storage:Pure form -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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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) Clomethiazole
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Biological Activity
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CYP2 |
Clomethiazole (1 mM), in the absence of GABA, to α1/β1/γ2 or α1/β2/γ2 subunit-containing cells produced large whole-cell currents[1]. Clomethiazole activate GABAA currents in α1/β1/γ2- and α1/β2/γ2-containing cells, with EC50 values of 0.3 and 1.5 mM, respectively[1]. Clomethiazole (30 μM) at low concentration also potentiates the action of GABA in both cell types, equivalent to a 3-fold increase in potency and up to 1.8-fold increase in maximal current[1]. Clomethiazole inhibits cytochrome P450 isoforms, CYP2A6 and CYP2E1 with IC50 values of 24 μM and 42 μM, respectively, in human liver microsomes, meanwhile all other isoforms exhibiting values > 300 μM[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 533-45-9
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Appearance Liquid (Density: 1.233 g/cm3)
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Molecular Weight 161.65
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Formula C6H8ClNS
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Color Colorless to light yellow
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SMILES
CC1=C(CCCl)SC=N1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Pure form -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (4)
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Journal Impact Factor
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Most Recent
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Biomaterials
Endoplasmic reticulum-targeted inhibition of CYP2E1 with vitamin E nanoemulsions alleviates hepatocyte oxidative stress and reverses alcoholic liver disease. [Abstract]2022 Sep:288:121720. PMID: 35961822 -
Cell Death Dis
USP14 governs CYP2E1 to promote nonalcoholic fatty liver disease through deubiquitination and stabilization of HSP90AA1. [Abstract]2023 Aug 26;14(8):566. PMID: 37633951 -
ACS Environ Au
Machine Learning-Assisted Recognition of Environmental Sulfur-Containing Chemicals in Nontargeted Mass Spectrometry Analysis of Inadequate Mass Resolution. [Abstract]2025 Aug 5;5(6):573-582. PMID: 41277996 -
Solvent & Solubility
DMSO : 100 mg/mL (618.62 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: ≥ 2.08 mg/mL (12.87 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: ≥ 2.08 mg/mL (12.87 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
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 (276 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
[1]. Nelson RM, et al.Electrophysiological actions of gamma-aminobutyric acid and clomethiazole on recombinant GABA(A) receptors.Eur J Pharmacol. 2002 Oct 11;452(3):255-62. [Content Brief]
[2]. Stresser DM, et al. Selective Time- and NADPH-Dependent Inhibition of Human CYP2E1 by Clomethiazole.Drug Metab Dispos. 2016 Aug;44(8):1424-30 [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. 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 | 6.1862 mL | 30.9310 mL | 61.8620 mL | 154.6551 mL |
| 5 mM | 1.2372 mL | 6.1862 mL | 12.3724 mL | 30.9310 mL | |
| 10 mM | 0.6186 mL | 3.0931 mL | 6.1862 mL | 15.4655 mL | |
| 15 mM | 0.4124 mL | 2.0621 mL | 4.1241 mL | 10.3103 mL | |
| 20 mM | 0.3093 mL | 1.5466 mL | 3.0931 mL | 7.7328 mL | |
| 25 mM | 0.2474 mL | 1.2372 mL | 2.4745 mL | 6.1862 mL | |
| 30 mM | 0.2062 mL | 1.0310 mL | 2.0621 mL | 5.1552 mL | |
| 40 mM | 0.1547 mL | 0.7733 mL | 1.5466 mL | 3.8664 mL | |
| 50 mM | 0.1237 mL | 0.6186 mL | 1.2372 mL | 3.0931 mL | |
| 60 mM | 0.1031 mL | 0.5155 mL | 1.0310 mL | 2.5776 mL | |
| 80 mM | 0.0773 mL | 0.3866 mL | 0.7733 mL | 1.9332 mL | |
| 100 mM | 0.0619 mL | 0.3093 mL | 0.6186 mL | 1.5466 mL |
Clomethiazole Related Classifications
HY-129105 Related Classifications
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