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(-)-5-HT2C agonist-3

(-)-5-HT2C agonist-3 (compound (–)-19) is a 5-HT2C selective agonist with Gq signaling preference, EC50 values for 5-HT2C: 103 nM; 5-HT2B: 570 nM; 5-HT2A: 72 nM.
(-)-5-HT2C agonist-3
(-)-5-HT2C agonist-3 Chemical Structure CAS No.: 2104810-16-2
Product category: 5-HT Receptor
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
(-)-5-HT2C agonist-3 (compound (–)-19) is a 5-HT2C selective agonist with Gq signaling preference, with EC50 values for 5-HT2C: 103 nM; 5-HT2B: 570 nM; 5-HT2A: 72 nM. (-)-5-HT2C agonist-3 can be used in antipsychotic research.
(-)-5-HT2C agonist-3 (compound (-)-19) is a small molecule that serves as a selective agonist for the serotonin 2C receptor (5-HT2C) with a preference for Gq signaling. It has the molecular formula C19H23ClFNO2 and a molecular weight of 351.84 g/mol. It appears as a solid powder and is used in antipsychotic research【3L21, L24】. The compound is an advanced research tool for studying serotonin receptor pharmacology and its role in psychiatric disorders.
Biological Activity I Assay Protocols (From Reference)
Targets
5-HT2A Receptor 72 nM (IC50) 5-HT2C Receptor 103 nM (IC50) 5-HT2B Receptor 570 nM (IC50)
(-)-5-HT2C agonist-3 selectively targets the serotonin 2C receptor (5-HT2C). It functions as an agonist, meaning it binds to and activates the receptor, leading to the initiation of downstream signaling cascades. It shows a preference for the Gq signaling pathway, which is the primary transducer for 5-HT2C receptors. By activating 5-HT2C, this compound can modulate neurotransmitter release, affecting mood, appetite, and psychotic symptoms.
ln Vitro
(-)-5-HT2C agonist-3 demonstrates potent and selective in vitro activity at the 5-HT2C receptor. It has an EC50 value of 103 nM for the 5-HT2C receptor, indicating high potency【3L12-L13, L16-L17】. It has lower activity at other related receptors, with EC50 values of 570 nM for 5-HT2B and 72 nM for 5-HT2A. This selectivity profile is crucial for minimizing off-target effects and provides a distinct functional fingerprint for research into specific receptor-mediated behaviors.
ln Vivo
Specific in vivo activity data for (-)-5-HT2C agonist-3 is not detailed. However, as a selective 5-HT2C agonist, it is designed for in vivo research into the treatment of psychiatric disorders, as indicated by its use in antipsychotic research. 5-HT2C agonists are known to have effects on psychosis, anxiety, and impulse control in animal models. The compound is being investigated as a potential antipsychotic medication.
Enzyme Assay
The binding affinity and selectivity can be determined using standard radioligand binding assays with membranes from cells overexpressing human serotonin receptors. Procedure: Membranes from CHO-K1 cells stably expressing human 5-HT2C receptors are incubated with a fixed concentration of a high-affinity radioligand (e.g., [3H]Mesulergine or [125I]DOI) for 60 minutes at 27degC in binding buffer (50 mM Tris-HCl, pH 7.4, 10 mM MgCl2, 0.1% BSA, 0.1% ascorbic acid). Varying concentrations of (-)-5-HT2C agonist-3 (0.01 nM to 10 microM) are added to compete for binding. Non-specific binding is defined with 10 microM mianserin. Bound radioligand is separated by filtration through GF/B filters and counted by liquid scintillation. The inhibitory constant (Ki) is calculated from the IC50 using the Cheng-Prusoff equation.
Cell Assay
Functional selectivity and potency are measured by calcium mobilization assays, as 5-HT2C receptor is Gq-coupled. Procedure: CHO-K1 cells stably expressing the human 5-HT2C receptor are seeded in 384-well plates (20,000 cells/well) and incubated overnight. On the assay day, cells are loaded with a calcium-sensitive dye (e.g., Fluo-4-AM) for 60 minutes at 37degC. The plates are then placed in a fluorometric imaging plate reader (FLIPR). Following the addition of varying concentrations of (-)-5-HT2C agonist-3 (e.g., 0.01 nM to 100 microM), the change in fluorescence (excitation 485 nm, emission 525 nm) is measured. The EC50 value (103 nM) is calculated from the peak fluorescence signal as a function of the compound's concentration. A parallel set of experiments is run on cells expressing 5-HT2A and 5-HT2B receptors to determine selectivity.
Animal Protocol
The in vivo effects of (-)-5-HT2C agonist-3 can be assessed in a mouse model for antipsychotic-like activity, such as the prepulse inhibition (PPI) of the startle reflex. Procedure: Male C57BL/6J mice (8-10 weeks) are administered (-)-5-HT2C agonist-3 (dissolved in a suitable vehicle like 10% DMSO/90% saline) intraperitoneally at doses of 0.1, 0.3, and 1 mg/kg, 30 minutes prior to testing. The PPI test involves placing a mouse in a startle chamber. After a 5-minute acclimation period, the mouse is exposed to a series of startle pulse-alone trials (e.g., 120 dB) and prepulse + startle trials (e.g., a 74, 78, or 82 dB prepulse followed by a 120 dB startle). The percentage of prepulse inhibition is calculated. A reversal of a PPI deficit induced by a psychotomimetic drug (e.g., dizocilpine or amphetamine) is interpreted as an antipsychotic-like effect.
ADME/Pharmacokinetics
Specific PK data for (-)-5-HT2C agonist-3 is not provided in the search results. As a small molecule (MW 351.84) with a halogen (fluorine and chlorine) substituents, it is expected to be designed for metabolic stability and good blood-brain barrier (BBB) penetration. The presence of a fluorine atom is a common strategy in medicinal chemistry to improve metabolic stability and bioavailability. Further ADME studies would be required to characterize its PK profile in preclinical species.
Toxicity/Toxicokinetics
Specific toxicology data for (-)-5-HT2C agonist-3 is not available. As an agonist of the 5-HT2C receptor, potential on-target effects include nausea and decreased appetite, which are also common side effects of serotonergic drugs. The selectivity over the 5-HT2B receptor (EC50 570 nM) is important as 5-HT2B agonism is associated with cardiac valvulopathy. The compound is for research use only and not intended for human use. Standard safety precautions should be followed.
References

[1]. "Discovery of N-substituted (2-phenylcyclopropyl) methylamines as functionally selective serotonin 2C receptor agonists for potential use as antipsychotic medications." Journal of medicinal chemistry 60.14 (2017): 6273-6288.

Additional Infomation
The 5-HT2C receptor is a G protein-coupled receptor (GPCR) that is widely expressed in the central nervous system, particularly in the choroid plexus, hippocampus, and hypothalamus. It plays a crucial role in the regulation of mood, anxiety, feeding behavior, and the control of psychotic symptoms. This has made it a major drug target for schizophrenia, depression, and obesity. (-)-5-HT2C agonist-3, with its Gq signaling preference and selectivity profile, is a valuable tool for dissecting the specific contributions of the 5-HT2C receptor to behavior and for developing novel antipsychotic medications with fewer side effects than current treatments. This product is for research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C19H23CLFNO2
Molecular Weight
351.84
Exact Mass
351.14
CAS #
2104810-16-2
PubChem CID
137640062
Appearance
Solid Powder
Hydrogen Bond Donor Count
2
Rotatable Bond Count
7
Heavy Atom Count
24
Complexity
367
Defined Atom Stereocenter Count
2
SMILES
COC1=C(C=C(C=C1)F)[C@H]2C[C@@H]2CNCC3=CC=CC=C3OC.Cl
InChi Key
KNTRIIJGIFKPED-XMZRARIVSA-N
InChi Code
InChI=1S/C19H22FNO2.ClH/c1-22-18-6-4-3-5-13(18)11-21-12-14-9-16(14)17-10-15(20)7-8-19(17)23-2;/h3-8,10,14,16,21H,9,11-12H2,1-2H3;1H/t14-,16+;/m1./s1
Chemical Name
1-[(1S,2S)-2-(5-fluoro-2-methoxyphenyl)cyclopropyl]-N-[(2-methoxyphenyl)methyl]methanamine;hydrochloride
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: (1). Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~100 mg/mL (~284.22 mM; with ultrasonication)
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.8422 mL 14.2110 mL 28.4220 mL
5 mM 0.5684 mL 2.8422 mL 5.6844 mL
10 mM 0.2842 mL 1.4211 mL 2.8422 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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