Description

L-Valineethylester is a high-purity, non-natural amino acid derivative widely utilized as a critical chiral building block in advanced organic synthesis. Its primary value lies in its role as a key intermediate for the production of pharmaceuticals, peptides, and fine chemicals, where stereochemical purity is paramount. This compound is essential for research institutions, pharmaceutical manufacturers, and fine chemical companies engaged in developing active pharmaceutical ingredients (APIs), peptide-based therapeutics, and complex chiral molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of antiviral drugs, enzyme inhibitors, and other active pharmaceutical ingredients (APIs).
• Peptide Synthesis: Used as a protected amino acid derivative in solid-phase and solution-phase peptide synthesis for research and therapeutic peptides.
• Asymmetric Synthesis: Serves as a chiral auxiliary or starting material in catalytic asymmetric reactions to construct complex molecules with high enantiomeric excess.
• Fine Chemical Production: An intermediate in the manufacture of specialty chemicals, agrochemicals, and flavor/fragrance compounds.
• Biochemical Research: Employed in metabolic studies, enzyme substrate modeling, and as a standard in analytical chromatography.
• Protecting Group Strategy: The ethyl ester moiety provides a versatile protecting group that can be selectively cleaved under mild conditions in multi-step syntheses.

Basic Information

Product Name	L-Valineethylester
CAS No.	17431-03-7
Molecular Formula	C7H15NO2
Molecular Weight	145.20 g/mol
Synonyms	L-Valine ethyl ester; Ethyl L-valinate; (S)-2-Amino-3-methylbutanoic acid ethyl ester; Valine ethyl ester; H-Val-OEt; L-Val-OEt; (S)-Valine ethyl ester; 2-Amino-3-methylbutyric acid ethyl ester
EINECS	Contact for details

Quality Control

Our L-Valineethylester is manufactured under strict quality management systems to ensure batch-to-batch consistency and high chemical purity. We provide comprehensive quality assurance, with specifications typically meeting or exceeding standards for pharmaceutical intermediate use. Certificates of Analysis (COA) detailing purity, enantiomeric excess, and impurity profiles are available for every batch upon request, supporting your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% ee
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.