Thioperamide
Based on 3 publication(s) in Google Scholar
Thioperamide (MR-12842) is a potent, orally available, brain penetrant and selective H3 receptor antagonist with a Ki of 4.3 nM for inhibition of [3H]histamine release. Thioperamide inhibits [3H]histamine synthesis with a Ki of 31 nM.
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- Purity: 99.91%
- CAS No.: 106243-16-7
- 화학식: C15H24N4S
- 분자량:292.44
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보관:Powder -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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용액&용해도
- 순도&문서
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) Thioperamide
MoreAll Histamine Receptor Isoforms
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Biological Activity
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H3 Receptor |
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Cell Line
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Type | Value | Description | References |
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| CHO-K1 | IC50 |
140 nM
Compound: Thioperamide
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Inverse agonist activity at recombinant human Histamine 3 receptor expressed in CHO-K1 cells assessed as inhibition of RAMH-induced agonist activity preincubated for 20 mins and measured after 60 mins by [35S]-GTPgammaS binding assay
Inverse agonist activity at recombinant human Histamine 3 receptor expressed in CHO-K1 cells assessed as inhibition of RAMH-induced agonist activity preincubated for 20 mins and measured after 60 mins by [35S]-GTPgammaS binding assay
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[PMID: 30629436] |
| CHO-K1 | IC50 |
19 nM
Compound: Thioperamide
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Antagonist activity at human H4 receptor expressed in CHO-K1 cells co-expressing G protein alpha16 assessed as inhibition of histamine-induced calcium mobilization incubated for 16 hrs by aequorin-based functional assay
Antagonist activity at human H4 receptor expressed in CHO-K1 cells co-expressing G protein alpha16 assessed as inhibition of histamine-induced calcium mobilization incubated for 16 hrs by aequorin-based functional assay
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[PMID: 31724859] |
| HEK293 | EC50 |
11 nM
Compound: thioperamide
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Inverse agonist activity at mouse histamine H3 receptor overexpressed in HEK293 cells by [35S]GTPgammaS binding assay
Inverse agonist activity at mouse histamine H3 receptor overexpressed in HEK293 cells by [35S]GTPgammaS binding assay
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[PMID: 19553110] |
| HEK293 | IC50 |
0.12 μM
Compound: Thioperamide
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Antagonist activity at human histamine H3 receptor expressed in HEK293 cells assessed by forskolin induced cAMP response element activation after 5 hrs by luciferase reporter gene assay
Antagonist activity at human histamine H3 receptor expressed in HEK293 cells assessed by forskolin induced cAMP response element activation after 5 hrs by luciferase reporter gene assay
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[PMID: 23978359] |
| HEK293 | IC50 |
517.5 nM
Compound: T
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Antagonist activity at histamine H3 receptor expressed in HEK293 cells co-transfected with pCRE-Luc gene assessed as inhibition of forskolin/histamine-induced cAMP accumulation after 5 hrs by luciferase reporter gene assay
Antagonist activity at histamine H3 receptor expressed in HEK293 cells co-transfected with pCRE-Luc gene assessed as inhibition of forskolin/histamine-induced cAMP accumulation after 5 hrs by luciferase reporter gene assay
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[PMID: 22019465] |
| HEK293 | IC50 |
667 nM
Compound: T
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Antagonist activity at histamine H4 receptor expressed in HEK293 cells co-transfected with pCRE-Luc gene assessed as inhibition of forskolin/histamine-induced cAMP accumulation after 5 hrs by luciferase reporter gene assay
Antagonist activity at histamine H4 receptor expressed in HEK293 cells co-transfected with pCRE-Luc gene assessed as inhibition of forskolin/histamine-induced cAMP accumulation after 5 hrs by luciferase reporter gene assay
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[PMID: 22019465] |
| HEK-293T | IC50 |
977 nM
Compound: Thioperamide
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Antagonist activity at human H4 receptor expressed in HEK293T cells assessed as inhibition of histamine-induced [35S]GTPgammaS binding
Antagonist activity at human H4 receptor expressed in HEK293T cells assessed as inhibition of histamine-induced [35S]GTPgammaS binding
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[PMID: 22153663] |
| SH-SY5Y | CC50 |
85.79 μM
Compound: Thioperamide
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Cytotoxicity in human SH-SY5Y cells assessed as reduction in cell viability after 72 hrs incubation by MTT assay
Cytotoxicity in human SH-SY5Y cells assessed as reduction in cell viability after 72 hrs incubation by MTT assay
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[PMID: 30822710] |
| U2OS | IC50 |
1.03 μM
Compound: Thioperamide
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Inhibition of human H3R expressed in methylhistamine-induced human H3-bla U2OS cells incubated for 30 mins by beta-lactamase complementation technology
Inhibition of human H3R expressed in methylhistamine-induced human H3-bla U2OS cells incubated for 30 mins by beta-lactamase complementation technology
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[PMID: 30822710] |
Thioperamide inhibits [3H]-(R)α-MeHA binding rat brain and guinea-pig lung with Kis of 2.1 nM and 2.0 nM, respectively. Thioperamide competitively blocks H3-autoreceptors regulating [3H]histamine release with a mean apparent Ki of 4 nM[1].
Thioperamide (0.01-100 μM; 24 hours) promotes the viability of NE-4C stem cells in a concentration-dependent manner[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:NE-4C stem cells
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Concentration:0.01, 0.1, 1, 10, 100 μM
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Incubation Time:24 hours
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Result:The viability of NE-4C stem cells increased significantly to 150.83±6.91% when (1 μM) was administrated, and increased to 145.11±14.52% and 132.02%±25.65% when 10 μM and 100 μM were administrated respectively.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Naive female C57BL/6J mice[3]
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Dosage:5, 10 or 20 mg/kg
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Administration:Injections (i.p.)
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Result:Facilitated reconsolidation of a contextually-conditioned fear memory.
Chemical Information
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CAS No. 106243-16-7
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Appearance Solid
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분자량 292.44
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화학식 C15H24N4S
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Color White to off-white
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SMILES
S=C(N1CCC(C2=CN=CN2)CC1)NC3CCCCC3
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Synonyms
MR-12842
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선적
Room temperature in continental US; may vary elsewhere.
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보관
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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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 -
Anal Chem
Exposome-Scale Investigation of Cl-/Br-Containing Chemicals Using High-Resolution Mass Spectrometry, Multistage Machine Learning, and Cloud Computing. [Abstract]2025 Jun 3;97(21):11099-11109. PMID: 40401576 -
Eur J Pharmacol
The role of heterodimers formed by histamine H3 receptors and dopamine D1 receptors on the methamphetamine-induced conditioned place preference. [Abstract]2024 Jul 30:176866. PMID: 39089461
용액&용해도
DMSO : 100 mg/mL (341.95 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 (8.55 mM); Clear solution; Need ultrasonic
This protocol yields a clear solution of 2.5 mg/mL.
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 (8.55 mM); Clear solution; Need ultrasonic
This protocol yields a clear solution of 2.5 mg/mL.
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.
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.
순도&문서
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Data Sheet (274 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
[1]. J M Arrang, et al. Highly Potent and Selective Ligands for Histamine H3-receptors. Nature. 1987 May 14-20;327(6118):117-23. [Content Brief]
[2]. Na Wang, et al. Histamine H3 Receptor Antagonist Enhances Neurogenesis and Improves Chronic Cerebral Hypoperfusion-Induced Cognitive Impairments. Front Pharmacol. 2020 Jan 21;10:1583. [Content Brief]
[3]. Y Charlier, et al. Differential Effects of Histamine H(3) Receptor Inverse Agonist Thioperamide, Given Alone or in Combination With the N-methyl-d-aspartate Receptor Antagonist Dizocilpine, on Reconsolidation and Consolidation of a Contextual Fear Memory [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 | 3.4195 mL | 17.0975 mL | 34.1950 mL | 85.4876 mL |
| 5 mM | 0.6839 mL | 3.4195 mL | 6.8390 mL | 17.0975 mL | |
| 10 mM | 0.3420 mL | 1.7098 mL | 3.4195 mL | 8.5488 mL | |
| 15 mM | 0.2280 mL | 1.1398 mL | 2.2797 mL | 5.6992 mL | |
| 20 mM | 0.1710 mL | 0.8549 mL | 1.7098 mL | 4.2744 mL | |
| 25 mM | 0.1368 mL | 0.6839 mL | 1.3678 mL | 3.4195 mL | |
| 30 mM | 0.1140 mL | 0.5699 mL | 1.1398 mL | 2.8496 mL | |
| 40 mM | 0.0855 mL | 0.4274 mL | 0.8549 mL | 2.1372 mL | |
| 50 mM | 0.0684 mL | 0.3420 mL | 0.6839 mL | 1.7098 mL | |
| 60 mM | 0.0570 mL | 0.2850 mL | 0.5699 mL | 1.4248 mL | |
| 80 mM | 0.0427 mL | 0.2137 mL | 0.4274 mL | 1.0686 mL | |
| 100 mM | 0.0342 mL | 0.1710 mL | 0.3420 mL | 0.8549 mL |
Thioperamide Related Classifications
HY-12206 Related Classifications
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