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L-Leucine mTOR activator

Cat.No.S3753

Leucine ((S)-Leucine, Leu) is one of nine essential amino acids in humans which is important for protein synthesis and many metabolic functions. It contributes to regulation of blood-sugar levels; growth and repair of muscle and bone tissue; growth hormone production; and wound healing. L-Leucine is an essential branched-chain amino acid (BCAA), which activates the mTOR signaling pathway.
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Quality Control

Batch: Purity: 99.03%
99.03

Solubility

In vitro
Batch:

Water : 13 mg/mL

DMSO : Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

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Mass Concentration Volume Molecular Weight
Dilution Calculator Molecular Weight Calculator

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

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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 131.17 Formula

C6H13NO2

Storage (From the date of receipt)
CAS No. 61-90-5 -- Storage of Stock Solutions

Synonyms (S)-Leucine, Leu SMILES CC(C)CC(C(=O)O)N

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

In vitro
Leucine also stimulates protein synthesis in muscle and is closely associated with the release of gluconeogenic precursors, such as alanine, from muscle.
In vivo
Leucine has a half-life of 45 minutes.
References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-04-03)

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NCT05235464 RECRUITING
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