Description

n-Acetyl-S-Methyl-L-Cysteine is a specialized derivative of the amino acid L-cysteine, featuring both acetyl and methylthio modifications. This compound is valued for its role as a key synthetic intermediate and a potential precursor in the development of pharmaceuticals and biochemical research tools. It is primarily sought by manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors for applications in drug discovery and synthesis.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those targeting respiratory or metabolic pathways.
• Biochemical Research: Used as a substrate or precursor in enzymatic studies and metabolic pathway research due to its modified cysteine structure.
• Peptide Synthesis: Employed in the production of modified peptides where a protected or functionalized cysteine residue is required.
• Antioxidant Studies: Investigated as a potential prodrug or analog of glutathione precursors for research into oxidative stress.
• Reference Standard: Utilized as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	n-Acetyl-S-Methyl-L-Cysteine
CAS No.	16637-59-5
Molecular Formula	C6H11NO3S
Molecular Weight	177.22 g/mol
Synonyms	N-Acetyl-S-methylcysteine; N-Acetyl-S-methyl-L-cysteine; Acetyl-S-methylcysteine; (2R)-2-Acetamido-3-(methylsulfanyl)propanoic acid; S-Methyl-N-acetyl-L-cysteine; L-Cysteine, N-acetyl-, S-methyl ester; N-Acetyl-3-(methylthio)alanine
EINECS	240-698-8

Quality Control

Our n-Acetyl-S-Methyl-L-Cysteine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR, to ensure it meets exacting standards for research and synthesis. Certificates of Analysis (COA) with detailed chromatographic data are provided for every shipment, supporting compliance in regulated environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. For long-term storage, consider using a desiccator.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	Contact for details
Loss on Drying	≤ 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.