Description

L-Valine Cyclopentyl Ester Hcl is a protected amino acid derivative, specifically the hydrochloride salt of the cyclopentyl ester of L-Valine. This compound is a crucial chiral building block in organic synthesis, valued for its role in introducing the valine moiety while controlling stereochemistry. It is primarily utilized by pharmaceutical R&D and fine chemical manufacturers for the synthesis of peptides, peptidomimetics, and other bioactive molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of novel active pharmaceutical ingredients (APIs) and prodrugs.
• Peptide Synthesis: Used in solid-phase and solution-phase peptide synthesis to incorporate the L-valine residue with a protected carboxylic acid group.
• Protease Inhibitor Development: Serves as a building block for creating inhibitors that target specific enzymes.
• Bioconjugation & Labeling: Employed in the preparation of modified peptides for diagnostic or research applications.
• Asymmetric Synthesis: Utilized as a starting material or auxiliary in stereoselective chemical reactions.
• Chemical Biology Research: Applied in the study of protein-protein interactions and cellular processes using synthetic peptide probes.

Basic Information

Product Name	L-Valine Cyclopentyl Ester Hcl
CAS No.	1018674-17-3
Molecular Formula	C11H22ClNO2
Molecular Weight	235.75 g/mol
Synonyms	L-Valine, cyclopentyl ester, hydrochloride; (S)-2-Amino-3-methylbutanoic acid cyclopentyl ester hydrochloride; Cyclopentyl L-valinate hydrochloride; Valine cyclopentyl ester HCl; (S)-Cyclopentyl 2-amino-3-methylbutanoate hydrochloride; L-Valine O-cyclopentyl ester hydrochloride; 1018674-17-3
EINECS	Contact for details

Quality Control

Our L-Valine Cyclopentyl Ester Hcl is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification, to ensure it meets the high standards required for pharmaceutical research. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Chiral Purity (HPLC)	≥99.0% ee
Water Content (KF)	≤1.0%
Residue on Ignition	≤0.1%
Heavy Metals	≤20 ppm

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