Description

S-Pentyl-L-Cysteine is a specialized, high-purity amino acid derivative featuring a pentyl side chain on the sulfur atom of L-cysteine. This compound is valued for its role as a key chiral building block and precursor in advanced organic synthesis and pharmaceutical research. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, nutraceutical, and fine chemical sectors for developing novel compounds and active ingredients.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon for the research and development of new drug candidates, particularly in areas targeting enzyme inhibition or receptor modulation.
• Biochemical Research: Used as a substrate or precursor in enzymatic studies and metabolic pathway investigations.
• Peptide Synthesis: Serves as a modified cysteine residue for introducing lipophilic character or specific functional groups into synthetic peptides.
• Flavor & Fragrance Precursor: Acts as a potential precursor for sulfur-containing flavor compounds in advanced food flavoring applications.
• Cosmetic Ingredient Synthesis: Employed in the development of specialized active ingredients for skincare formulations.
• Reference Standard: Used as a high-purity analytical standard in quality control laboratories for method development and validation.

Basic Information

Product Name	S-Pentyl-L-Cysteine
CAS No.	4080-25-5
Molecular Formula	C8H17NO2S
Molecular Weight	191.29 g/mol
Synonyms	L-Cysteine, S-pentyl-; (R)-2-Amino-3-(pentylthio)propanoic acid; S-Amyl-L-cysteine; S-n-Pentyl-L-cysteine; 3-(Pentylthio)-L-alanine; Pentylcysteine; 4080-25-5; S-Pentylcysteine
EINECS	Contact for details

Quality Control

Our S-Pentyl-L-Cysteine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and identity confirmation, to ensure it meets the high standards required for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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%
Optical Rotation [α]	Contact for details
Chiral Purity (HPLC)	≥ 99.0%
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.