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L-Valinol ((S)-2-Amino-3-methyl-butanol)

L-Valinol ((S)-2-Amino-3-methyl-butanol) is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent in biomedical research.
L-Valinol ((S)-2-Amino-3-methyl-butanol)
L-Valinol ((S)-2-Amino-3-methyl-butanol) Chemical Structure CAS No.: 2026-48-4
Product category: Biochemical Assay Reagents
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
100g
Other Sizes

Other Forms of L-Valinol ((S)-2-Amino-3-methyl-butanol):

  • D-Valinol ((R)-2-Amino-3-methyl-butanol)
Official Supplier of:
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Product Description
L-Valinol ((S)-2-Amino-3-methyl-butanol) is a biochemical compound that may be utilized as a biomaterial or organic/chemical reagent in biomedical research.
L-Valinol ((S)-2-Amino-3-methyl-butanol) (CAS 2026-48-4) is a chiral amino alcohol derived from the essential amino acid L-valine. With molecular formula C₅H₁₃NO and molecular weight 103.17 g/mol, it appears as a low melting point solid or liquid with a melting point of 30-32°C and a boiling point of 81°C at 8 mmHg. The compound is a biochemical reagent used as a chiral building block in asymmetric synthesis.
Biological Activity I Assay Protocols (From Reference)
Targets
L-Valinol does not have a defined pharmacological target of its own, as it is a chiral building block used in synthesis. It is used as a reagent for the synthesis of simple 1,3-thiazolidine-2-thione derivatives with fungicidal activity. It is also used in clinical trials to synthesize small molecule inhibitors of MDM2-p53 protein-protein interaction (MDM2 inhibitors) for the treatment of cancer.
ln Vitro
In vitro, L-valinol is primarily used as a chemical reagent and synthetic intermediate. It reacts with aldehydes and nitriles to form imines and oxazolines, respectively, for asymmetric synthesis. It is used for the preparation of 4-isopropyloxazolidinones. As a chiral amino alcohol, it is a valuable building block for the synthesis of enantiomerically pure pharmaceutical compounds and other bioactive molecules.
ln Vivo
In vivo data for L-valinol itself are not available, as the compound is not intended for direct in vivo administration. Rather, it is a precursor used in the synthesis of drug candidates such as MDM2-p53 inhibitors that are subsequently evaluated in animal models. The compound's in vivo relevance is indirect, through the biological activities of the final pharmaceutical compounds derived from its chiral scaffold.
Enzyme Assay
For in vitro chemical synthesis, L-valinol is used as a chiral building block for the preparation of various compounds. Standard protocols involve reacting L-valinol with aldehydes to form imines (Schiff bases) or with nitriles to form oxazolines. The compound can also be used in the synthesis of 1,3-thiazolidine-2-thione derivatives. The amino alcohol functionality enables a wide range of transformations while maintaining stereochemical integrity.
Cell Assay
For in vitro cell-based experiments, L-valinol is used as an intermediate in the synthesis of compounds that are tested in cell viability, proliferation, and cytotoxicity assays. The compound itself is not typically evaluated in cell-based assays. Standard cell culture protocols for test compounds synthesized from this intermediate involve dissolving the final product in DMSO and diluting to working concentrations in appropriate cell culture medium.
Animal Protocol
In vivo animal studies using L-valinol are conducted on the final drug compounds synthesized from it, not on the intermediate itself. For MDM2-p53 inhibitors derived from this building block, efficacy studies would typically be performed in mouse xenograft models of cancer. Standard in vivo protocols involve administration to rodents via oral gavage or intraperitoneal injection, with measurement of tumor volume over time.
ADME/Pharmacokinetics
Pharmacokinetic properties of L-valinol as a standalone compound are not characterized in the literature. The compound has a molecular weight of 103.17 g/mol, which is very favorable for oral bioavailability. The amino alcohol functionality may influence water solubility and metabolic conjugation. The compound's chiral nature is important for the synthesis of enantiomerically pure drug candidates. Empirical pharmacokinetic data are not available for this intermediate compound.
Toxicity/Toxicokinetics
L-Valinol is a research chemical and should be handled with appropriate laboratory safety precautions. As an amino alcohol, it may cause skin and eye irritation. The compound is for research use only and not for human therapeutic or diagnostic applications. Specific LD₅₀ values, acute toxicity classifications, and chronic toxicity data are not available in the public literature. Standard safety practices include the use of personal protective equipment and working in a fume hood.
Additional Infomation
L-Valinol ((S)-2-Amino-3-methyl-butanol) (CAS 2026-48-4) is primarily a research-grade chiral building block, not an FDA-approved pharmaceutical drug. Its primary applications are in asymmetric synthesis for the preparation of enantiomerically pure compounds, in the synthesis of MDM2-p53 inhibitors for cancer research, and in the preparation of fungicidal agents. No clinical trials or approved therapeutic indications exist for this compound as a drug.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C5H13NO
Molecular Weight
103.16
Exact Mass
103.099
CAS #
2026-48-4
Related CAS #
D-Valinol;4276-09-9
PubChem CID
640993
Appearance
Colorless to off-white <30°C powder,>34°C liquid
Density
0.9±0.1 g/cm3
Boiling Point
186.8±13.0 °C at 760 mmHg
Melting Point
30-34 °C
Flash Point
91.1±0.0 °C
Vapour Pressure
0.2±0.8 mmHg at 25°C
Index of Refraction
1.447
LogP
-0.08
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
2
Heavy Atom Count
7
Complexity
45.3
Defined Atom Stereocenter Count
1
SMILES
OC[C@H](C(C)C)N
InChi Key
NWYYWIJOWOLJNR-RXMQYKEDSA-N
InChi Code
InChI=1S/C5H13NO/c1-4(2)5(6)3-7/h4-5,7H,3,6H2,1-2H3/t5-/m1/s1
Chemical Name
(2S)-2-amino-3-methylbutan-1-ol
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 (~969.4 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (24.23 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween-80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), Clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of DMSO stock solution (25.0 mg/mL) to 400 μL of PEG300 and mix well; then add 50 μL of Tween-80 and mix well; finally add 450 μL of physiological saline and adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (24.23 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), Clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of DMSO stock solution (25.0 mg/mL) to 900 μL of 20% SBE-β-CD saline and mix well.
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.

Solubility in Formulation 3: ≥ 2.5 mg/mL (24.23 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), Clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of DMSO stock solution (25.0 mg/mL) to 900 μL of corn oil and mix well.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 9.6937 mL 48.4684 mL 96.9368 mL
5 mM 1.9387 mL 9.6937 mL 19.3874 mL
10 mM 0.9694 mL 4.8468 mL 9.6937 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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