Description

D-S-Isoamylcysteine is a specialized, non-proteinogenic amino acid derivative featuring an isoamyl side chain. This compound is valued for its role as a chiral building block and a precursor in the synthesis of more complex bioactive molecules. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and fine chemical sectors for applications in drug discovery and process development.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of novel therapeutic agents, including peptide mimetics and enzyme inhibitors.
• Biochemical Research: Used as a reference standard or a modified cysteine analog in proteomics and metabolic pathway studies.
• Fine Chemical Synthesis: Acts as a building block for the preparation of custom ligands, catalysts, and advanced materials requiring specific stereochemistry.
• Cosmetic Peptide Precursor: Potential use in the synthesis of peptides for advanced skincare formulations targeting antioxidant and anti-aging properties.

Basic Information

Item	Detail
Product Name	D-S-Isoamylcysteine
CAS No.	312746-71-7
Molecular Formula	C8H17NO2S
Molecular Weight	191.29 g/mol
Synonyms	(R)-2-Amino-3-methyl-4-sulfanylpentanoic acid; D-3-Mercapto-2-amino-4-methylpentanoic acid; D-Isoamylcysteine; (2R)-2-Amino-3-methyl-4-sulfanylpentanoic acid; D-2-Amino-3-methyl-4-mercaptopentanoic acid; D-3-Methyl-2-amino-4-mercaptovaleric acid; (R)-Isoamylcysteine
EINECS	Contact for details

Quality Control

Our D-S-Isoamylcysteine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chiral purity verification and impurity profiling, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) documenting identity, purity, and specific tests are available upon request.

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 material is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions when necessary.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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