Name: Ramelteon
Brand: Selleck Chemicals
SKU: S1259
Availability: InStock
Rating: 5 (7 reviews)

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Quality Control

Batch: Purity: 99.92%

99.92

Related Targets	K-Ras CXCR Hedgehog/Smoothened PKA Adrenergic Receptor AChR 5-HT Receptor Histamine Receptor Dopamine Receptor Ras
Other MT Receptor Products	Melatonin Luzindole

Solubility

In vitro
Batch:

DMSO : 51 mg/mL (196.65 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 51 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.000mg/ml (11.57mM)	Taking the 1 mL working solution as an example, add 50 μL of 60 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	259.34	Formula	C₁₆H₂₁NO₂	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	196597-26-9	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	TAK-375			Smiles	CCC(=O)NCCC1CCC2=C1C3=C(C=C2)OCC3

Mechanism of Action

Features	A tricyclic synthetic analog of melatonin.
Targets/IC₅₀/Ki	MT1 receptor (Cell-free assay) 14 pM(Ki) MT receptor (chicken) (Cell-free assay) 23.1 pM(Ki) MT2 receptor (Cell-free assay) 112 pM(Ki)
In vitro	Ramelteon inhibits forskolin-stimulated cAMP production with IC50 of 21.2 pM in CHO cells. This compound has high affinity with recombinant human MT1 and MT2 receptors with pKi of 10.05 and 9.70, respectively. It inhibits Xenopus laevis melanophore pigment granule aggregation with pEC50 of 11.48. This chemical (1 nM) increases ERK1/2 phosphorylation not only in MT1/MT2 cerebellar granule cells but also in cerebellar granule cells expressing only one of the two melatonin receptors. 4P-PDOT blocks the stimulatory action of this compound (1 nM) in MT1 KO cerebellar granule cells, while luzindole attenuates the action of this chemical (1 nM) in MT2 KO cerebellar granule cells. It (100 μM) induces any pigment dispersion while melatonin completely disperses aggregated melanophores at 10 μM.
In vivo	Ramelteon (10 mg/kg, i/p) significantly reduces NREM sleep latency in rat and also produces a short-lasting increase in nonrapid eye movement (NREM) sleep duration, but the NREM power spectrum is unaltered. This compound (0.1 mg/kg and 1 mg/kg, p.o.) accelerates reentrainment of running wheel activity rhythm to the new lightdark cycle in rats without affecting learning or memory. It (0.03 mg/kg and 0.3 mg/kg, p.o.) significantly shortens latency to sleep onset and significantly increases total duration of sleep in freely moving monkeys without affecting the general behavior of the monkeys.
References	[1] https://pubmed.ncbi.nlm.nih.gov/15695169/ [2] https://pubmed.ncbi.nlm.nih.gov/18298466/ [3] https://pubmed.ncbi.nlm.nih.gov/18664376/ [4] https://pubmed.ncbi.nlm.nih.gov/15654068/ [5] https://pubmed.ncbi.nlm.nih.gov/15494157/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT03931070	Completed	Delirium	Rhode Island Hospital	May 9 2019	Phase 4
NCT02560324	Completed	Tobacco Use Disorder	University of Pennsylvania\|National Institute on Drug Abuse (NIDA)\|National Institutes of Health (NIH)	September 2015	Phase 2
NCT02969343	Completed	Central Line-Associated Bloodstream Infection (CLABSI)\|Venous Thromboembolism\|Patient Fall\|Catheter-Associated Infection\|Severe Hypoglycemia\|Opioid-Related Severe Adverse Drug Event\|Hospital Acquired Pressure Ulcer\|Adverse Drug Event\|Severe Hospital Acquired Delerium\|Rapid Response Related to Arrhythmia	Brigham and Women''s Hospital\|Northeastern University	April 2015	Not Applicable
NCT00568789	Completed	Insomnia	Takeda	June 2006	Phase 4

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Ramelteon MT Receptor agonist

Chemical Structure

Molecular Weight: 259.34