Description

n-Acetyl-S-(2-Hydroxyethyl)-L-Cysteine is a key biochemical derivative of the amino acid L-cysteine, modified with acetyl and 2-hydroxyethylthio groups. This compound matters as a versatile intermediate and reference standard in life science research and pharmaceutical development, offering a protected and functionalized cysteine moiety. It is primarily needed by researchers and manufacturers in the pharmaceutical, biotechnology, and diagnostic sectors for applications in drug discovery, proteomics, and as a precursor for synthesizing more complex bioactive molecules.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly those targeting enzymes or receptors where a modified cysteine residue is critical.
• Biochemical Research: Serves as a standard or reagent in proteomics studies, enzyme kinetics, and investigations into redox biology and glutathione metabolism.
• Reference Standard: Employed in analytical laboratories for method development and validation in HPLC, LC-MS, or other chromatographic assays for related compounds.
• Precursor for Conjugation: The hydroxyethyl side chain provides a handle for further chemical modification, making it useful for creating labeled probes or protein conjugates.
• Nutritional & Cosmetic Research: Investigated for potential applications in formulations where stabilized, bioavailable cysteine derivatives are of interest.

Basic Information

Product Name	n-Acetyl-S-(2-Hydroxyethyl)-L-Cysteine
CAS No.	15060-26-1
Molecular Formula	C7H13NO4S
Molecular Weight	207.25 g/mol
Synonyms	N-Acetyl-S-(2-hydroxyethyl)-L-cysteine; N-Acetyl-S-(β-hydroxyethyl)-L-cysteine; N-Acetyl-S-(2-hydroxyethyl)cysteine; N-Acetyl-3-(2-hydroxyethylthio)alanine; Acetylcysteine hydroxyethyl ester; L-Cysteine, N-acetyl-S-(2-hydroxyethyl)-; Mercapturic acid derivative; 2-(Acetylamino)-3-(2-hydroxyethylsulfanyl)propanoic acid
EINECS	Contact for details

Quality Control

Our n-Acetyl-S-(2-Hydroxyethyl)-L-Cysteine is produced under controlled conditions and undergoes rigorous analytical testing to ensure high purity and consistency. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to stringent internal quality standards suitable for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Specific range available on COA
Loss on Drying	≤ 1.0%
Heavy Metals	< 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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