Description

(2R)-2-Acetamido-3-Sulfanyl-Propanoic Acid is a high-purity chiral amino acid derivative, specifically the N-acetylated form of L-cysteine. This compound matters as a critical building block and chiral auxiliary in advanced pharmaceutical synthesis and biochemical research, offering precise stereochemical control. It is primarily needed by manufacturers and R&D teams in the pharmaceutical, biotechnology, and fine chemical industries for applications ranging from peptide synthesis to the development of novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting neurological and metabolic disorders.
• Peptide Synthesis: Used as a protected cysteine derivative in solid-phase and solution-phase peptide synthesis to introduce thiol functionality.
• Biochemical Research: Serves as a precursor or standard in enzymatic studies, metabolic pathway analysis, and proteomics research.
• Antioxidant Formulation: Investigated for use in nutraceutical and cosmetic formulations due to its role as a precursor to glutathione, a potent biological antioxidant.
• Chelating Agent Synthesis: Acts as a starting material for synthesizing specialized chelating ligands used in metal catalysis and detoxification agents.
• Reference Standard: Employed as a high-purity analytical reference standard in quality control laboratories for HPLC, LC-MS, and NMR.

Basic Information

Product Name	(2R)-2-Acetamido-3-Sulfanyl-Propanoic Acid
CAS No.	7696-05-1
Molecular Formula	C5H9NO3S
Molecular Weight	163.19 g/mol
Synonyms	N-Acetyl-L-cysteine; NAC; L-N-Acetylcysteine; N-Acetylcysteine; (R)-2-Acetamido-3-mercaptopropanoic acid; Acetylcysteine; Mercapturic acid precursor; N-Acetyl-3-mercaptoalanine; EINECS 231-704-2
EINECS	231-704-2

Quality Control

Our (2R)-2-Acetamido-3-Sulfanyl-Propanoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, chiral analysis for enantiomeric excess, and comprehensive identification tests. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, ensuring compliance with relevant standards for research and pharmaceutical use.

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 easily oxidized; for long-term storage, consider storing under an inert atmosphere such as nitrogen or argon. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥98.0%
Enantiomeric Purity (Chiral HPLC)	≥99.0% (2R isomer)
Loss on Drying	≤1.0%
Residue on Ignition	≤0.1%
Heavy Metals (as Pb)	≤10 ppm

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