SB 242084
Based on 6 publication(s) in Google Scholar
SB 242084 is a selective, competitive and high-affinity (pKi=9.0) 5-HT2C receptor antagonist (crosses the blood-brain barrier). SB 242084 increases basal activity of dopaminergic neurons in the ventral tegmental area (VTA) of the midbrain and dopamine release in the vomeronasal nucleus. SB 242084 also increases mitochondrial gene expression and oxidative metabolism via 5-HT2A receptor. SB 242084 has good research potential in the negative symptoms of anxiety, depression and schizophrenia, as well as in acute organ damage.
For research use only. We do not sell to patients.
- Purity: 99.96%
- CAS No.: 181632-25-7
- Formula: C21H19ClN4O2
- Molecular Weight:394.85
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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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) SB 242084
MoreAll 5-HT Receptor Isoforms
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Biological Activity
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5-HT2A Receptor |
5-HT2C Receptor |
5-HT2C Receptor 9.0 (pKi) |
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| U2OS | IC50 |
0.33 nM
Compound: SB 242,084
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Antagonist activity at recombinant human 5-HT2C expressed in human U2OS cells by pathhunter beta-arrestin assay
Antagonist activity at recombinant human 5-HT2C expressed in human U2OS cells by pathhunter beta-arrestin assay
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[PMID: 32631554] |
SB 242084 (100 nM; 45 min) exhibits antagonism of the 5-HT stimulated increase in phosphatidylinositol hydrolysis at the human 5-HT2C receptor in SH-SY5Y cells[1].
SB 242084 (1-100 Nm; 24 h) increases RPTC respiration and PGC-1α mRNA expression in RPTC[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:SH-SY5Y cells
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Concentration:100 nM
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Incubation Time:45 min
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Result:Antagonized 5-HT induced concentration-related increase in PI hydrolysis.
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Cell Line:RPTC cells
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Concentration:1-100 nM
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Incubation Time:24 h
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Result:Increased FCCP-uncoupled respiration and PGC-1α mRNA expression.
SB 242084 (5 mg/kg; i.p.; single; 20 min pre-test) improves mCPP-induced hypophagia in rats[1].
SB 242084 (5, 10 mg/kg; i.p.; single) increases the levels of basal dialysate dopamine (DA) and dihydroxyphenylacetic acid (DOPAC) in the nucleus accumbens of rats[3].
SB 242084 (160-640 μg/kg; i.v.; single) dose-dependently and significantly increases the basal firing rate of VTA (ventral tegmental area) dopaminergic neurons, and the bursting activity is also enhanced in the same area, in vivo[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male Sprague-Dawley (CD) rats[1].
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Dosage:0.1-1 mg/kg
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Administration:Intraperitoneal injection; single; 20 min pre-test
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Result:Significantly increased the amount of time rats spent in social interaction over 15 min under brightly lit conditions and in an unfamiliartest box.
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Animal Model:Male Sprague-Dawley (CD) rats(mCPP-induced hypophagia model)[1].
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Dosage:5 mg/kg
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Administration:Intraperitoneal injection; single; 20 min pre-test
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Result:Significantly reduced the amount of food consumed by 23 h food-deprivedrats over a 1hr test period from the time of food presentation.
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Animal Model:Rats[2].
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Dosage:5, 10 mg/kg
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Administration:Intraperitoneal injection; single
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Result:Significantly increased basal dialysate dopamine (DA) and dihydroxyphenylacetic acid (DOPAC) in the nucleus accumbens.
Chemical Information
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CAS No. 181632-25-7
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Appearance Solid
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Molecular Weight 394.85
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Formula C21H19ClN4O2
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Color Off-white to pink
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SMILES
O=C(N1CCC2=C1C=C(Cl)C(C)=C2)NC3=CC=C(OC4=CC=CN=C4C)N=C3
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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 2 years -20°C 1 year
Publications (6)
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Journal Impact Factor
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Most Recent
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Brain
Hippocampal excitation-inhibition balance underlies the 5-HT2C receptor in modulating depressive behaviours. [Abstract]2024 Nov 4;147(11):3764-3779. PMID: 38701344 -
Biochem Pharmacol
Complement C3/C3a-CCL9 feedback loop orchestrates inflammatory crosstalk to accelerate aortic dissection. [Abstract]2025 Oct 13:117421. PMID: 41093012 -
Eur J Pharmacol
2,5-Dimethoxy-4-methylamphetamine (DOM)-induced gait alterations in mice: Dissecting the role of 5-HT2A/2C receptor-mediated mechanisms. [Abstract]2025 Nov 5:1006:178170. PMID: 40962017 -
Neuroendocrinology
Peripheral 5-HT mediates GnIH-induced feeding behavior and energy metabolism disorder in chickens via the 5-HT2C receptor. [Abstract]2024 May 8. PMID: 38718758 -
Biochem Biophys Res Commun
AMPA receptor potentiation alleviates NLRP3 knockout-induced fear generalization in mice. [Abstract]2024 May 23:722:150074. PMID: 38805785 -
Solvent & Solubility
DMSO : ≥ 44 mg/mL (111.43 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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 (6.33 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 (283 KB)
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SDS (392 KB)
- English - EN (392 KB)
- Français - FR (392 KB)
- Deutsch - DE (392 KB)
- Norwegian - NO (392 KB)
- Español - ES (392 KB)
- Swedish - SV (392 KB)
- Italian - IT (392 KB)
- Portuguese - PT (392 KB)
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Handling Instructions (2659 KB)
References
[1]. Kennett GA, et al. SB 242084, a selective and brain penetrant 5-HT2C receptor antagonist. Neuropharmacology. 1997 Apr-May;36(4-5):609-20. [Content Brief]
[2]. Harmon JL, et al. 5-HT2 Receptor Regulation of Mitochondrial Genes: Unexpected Pharmacological Effects of Agonists and Antagonists. J Pharmacol Exp Ther. 2016 Apr;357(1):1-9. [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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.5326 mL | 12.6630 mL | 25.3261 mL | 63.3152 mL |
| 5 mM | 0.5065 mL | 2.5326 mL | 5.0652 mL | 12.6630 mL | |
| 10 mM | 0.2533 mL | 1.2663 mL | 2.5326 mL | 6.3315 mL | |
| 15 mM | 0.1688 mL | 0.8442 mL | 1.6884 mL | 4.2210 mL | |
| 20 mM | 0.1266 mL | 0.6332 mL | 1.2663 mL | 3.1658 mL | |
| 25 mM | 0.1013 mL | 0.5065 mL | 1.0130 mL | 2.5326 mL | |
| 30 mM | 0.0844 mL | 0.4221 mL | 0.8442 mL | 2.1105 mL | |
| 40 mM | 0.0633 mL | 0.3166 mL | 0.6332 mL | 1.5829 mL | |
| 50 mM | 0.0507 mL | 0.2533 mL | 0.5065 mL | 1.2663 mL | |
| 60 mM | 0.0422 mL | 0.2111 mL | 0.4221 mL | 1.0553 mL | |
| 80 mM | 0.0317 mL | 0.1583 mL | 0.3166 mL | 0.7914 mL | |
| 100 mM | 0.0253 mL | 0.1266 mL | 0.2533 mL | 0.6332 mL |
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