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Ethyl2-hydroxy-4-methylpentanoate (DL-ethyl leucine)

Ethyl2-hydroxy-4-methylpentanoate has a fruity smell and is extensively used as a flavoring agent in the food and beverage industry.
Ethyl2-hydroxy-4-methylpentanoate (DL-ethyl leucine)
Ethyl2-hydroxy-4-methylpentanoate (DL-ethyl leucine) Chemical Structure CAS No.: 10348-47-7
Product category: Biochemical Assay Reagents
This product is for research use only, not for human use. We do not sell to patients.
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5g
10g
25g
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Product Description
Ethyl2-hydroxy-4-methylpentanoate has a fruity smell and is extensively used as a flavoring agent in the food and beverage industry. Additionally, it could be utilized as an intermediate in the synthesis/preparation of various organic/chemical reagents such as pharmaceuticals and agrochemicals. Its unique chemical properties make it an important ingredient in a variety of industrial processes such as the production of cosmetics and personal care products.
Ethyl 2-hydroxy-4-methylpentanoate (CAS 10348-47-7), also known as DL-leucic acid ethyl ester or ethyl DL-2-hydroxy-4-methylvalerate, is an ester derivative of leucic acid with the molecular formula C₈H₁₆O₃ and a molecular weight of 160.21 g/mol. It appears as a liquid at room temperature. This compound is used as a biochemical reagent and organic building block in life science research. It serves as a synthetic intermediate for the preparation of various pharmacologically active compounds. The compound's ester and hydroxyl functional groups make it a versatile building block for organic synthesis and medicinal chemistry applications.
Biological Activity I Assay Protocols (From Reference)
Targets
Ethyl 2-hydroxy-4-methylpentanoate does not have a defined primary drug target as it is a synthetic intermediate and chemical reagent rather than a therapeutic agent. The compound's structural similarity to leucine and leucic acid derivatives suggests potential interactions with enzymes involved in amino acid metabolism, such as branched-chain amino acid aminotransferase or dehydrogenases. However, the compound itself is not designed to bind to specific biological targets. Its utility lies in its role as a building block for the synthesis of drug candidates with defined pharmacological activities.
ln Vitro
A biochemical reagent called ethyl2-hydroxy-4-methylpentanoate can be utilized in life science research as an organic substance or biological material.
As a synthetic intermediate, Ethyl 2-hydroxy-4-methylpentanoate is not typically evaluated for direct in vitro biological activity against specific molecular targets. The compound serves as a precursor for biologically active molecules rather than possessing intrinsic pharmacological activity. Its primary applications are in organic synthesis as a building block for pharmaceuticals and naturally occurring compounds. Any biological activity observed would be incidental and not the intended purpose of the compound.
ln Vivo
The compound itself is not typically evaluated for in vivo activity as it is a synthetic intermediate. Drug candidates synthesized from Ethyl 2-hydroxy-4-methylpentanoate may be evaluated in animal models for various indications, but the biological activity is attributed to the final drug molecule rather than the intermediate. The compound's primary applications remain in chemical synthesis and medicinal chemistry research as a versatile building block for drug discovery.
Enzyme Assay
Cell-free biochemical assays involving Ethyl 2-hydroxy-4-methylpentanoate typically focus on its use as a synthetic reagent rather than as an enzyme inhibitor. In organic synthesis, the compound can be used as a chiral building block for the preparation of various derivatives. A standard protocol for ester hydrolysis involves treating the compound with aqueous base (e.g., NaOH or KOH) in ethanol or THF at room temperature or with heating, followed by acidification to isolate the carboxylic acid product. The compound's purity is verified by GC or HPLC. Reactions are monitored by TLC and products are characterized by NMR spectroscopy.
Cell Assay
Cell-based assays are not typically performed with Ethyl 2-hydroxy-4-methylpentanoate as the compound is a chemical reagent rather than a drug candidate. If evaluating the biological activity of compounds synthesized from this intermediate, standard cell-based protocols would apply depending on the target indication. For example, cancer cell lines may be treated with the synthesized compound at various concentrations for 24-72 hours, and cell viability assessed by MTT or CellTiter-Glo assays. The intermediate itself may be used as a control to confirm that observed activity is due to the final compound structure.
Animal Protocol
In vivo studies are not typically conducted with Ethyl 2-hydroxy-4-methylpentanoate itself. For drug candidates synthesized using this intermediate, standard in vivo efficacy studies involve rodent models of the target disease. A typical protocol includes oral or intravenous administration of the test compound at various doses, with monitoring of disease progression through appropriate endpoints such as tumor volume measurement, biomarker analysis, or survival assessment. The ester group may be hydrolyzed in vivo to the corresponding acid, which could contribute to the overall pharmacokinetic profile.
ADME/Pharmacokinetics
As a chemical reagent rather than a drug, comprehensive pharmacokinetic data for Ethyl 2-hydroxy-4-methylpentanoate is not available. The compound's molecular weight is 160.21 g/mol and its logP is 0.9565, suggesting moderate lipophilicity. The compound is a liquid at room temperature. For drug molecules synthesized from this intermediate, ADME properties depend on the final structure. The ester group may be subject to hydrolysis by esterases in vivo, releasing the corresponding carboxylic acid.
Toxicity/Toxicokinetics
Toxicological data specific to Ethyl 2-hydroxy-4-methylpentanoate is limited in publicly available literature. As with all chemical reagents, standard laboratory safety precautions should be observed when handling this compound. The compound should be handled with appropriate personal protective equipment in a well-ventilated area. For drug candidates synthesized using this intermediate, comprehensive toxicological evaluation is required as part of the drug development process, including acute and repeat-dose toxicity studies, genotoxicity assessment, and safety pharmacology profiling.
Additional Infomation
2-Hydroxy-4-methylvalerate ethyl ester is a fatty acid ester.
Ethyl 2-hydroxy-4-methylpentanoate is a research chemical and synthetic intermediate rather than an approved pharmaceutical agent. No clinical trials or regulatory approvals exist for this compound itself. It is commercially available from various chemical suppliers for research purposes only. The compound's primary value lies in its utility as a versatile building block in organic synthesis, particularly for the preparation of leucic acid derivatives and other pharmacologically active compounds. Its applications in medicinal chemistry include the synthesis of drug candidates for various therapeutic areas. Researchers utilize this intermediate to explore structure-activity relationships and develop novel therapeutic agents.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C8H16O3
Molecular Weight
160.21
Exact Mass
160.11
CAS #
10348-47-7
PubChem CID
112030
Appearance
Colorless to light yellow liquid(Density:0.97 g/cm3)
Density
0.97g/cm3
Boiling Point
185°C
Vapour Pressure
0.0967mmHg at 25°C
LogP
0.956
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
5
Heavy Atom Count
11
Complexity
121
Defined Atom Stereocenter Count
0
SMILES
O([H])C([H])(C(=O)OC([H])([H])C([H])([H])[H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])[H]
InChi Key
QRHOWVDPHIXNEN-UHFFFAOYSA-N
InChi Code
InChI=1S/C8H16O3/c1-4-11-8(10)7(9)5-6(2)3/h6-7,9H,4-5H2,1-3H3
Chemical Name
ethyl 2-hydroxy-4-methylpentanoate
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

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 (624.18 mM)
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 6.2418 mL 31.2090 mL 62.4181 mL
5 mM 1.2484 mL 6.2418 mL 12.4836 mL
10 mM 0.6242 mL 3.1209 mL 6.2418 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.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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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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